TY  - JOUR
AU  - Gojgić-Cvijović, Gordana D.
AU  - Jakovljević, Dragica M.
AU  - Lončarević, Branka D.
AU  - Todorović, Nevena M.
AU  - Pergal, Marija V.
AU  - Ćirić, J.
AU  - Loos, K.
AU  - Beškoski, Vladimir
AU  - Vrvić, Miroslav M.
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/350
AB  - The production of levan by Bacillus licheniformis NS032 in a medium based on sugar beet molasses was studied. High polysaccharide yields were produced by using diluted molasses (100–140 g/L of total sugars) with the addition of commercial sucrose up to 200 g/L of total sugars, as well as K2HPO4. A levan yield of 53.2 g/L was obtained on a medium optimized by response surface methodology, containing 62.6% of sugar originating from molasses, and 4.66 g/L of phosphate, with initial pH value of 7.2. In comparison to the media with 200 and 400 g/L sucrose, in the molasses optimized medium, the observed bacterial growth was faster, while the maximum production of polysaccharide was achieved over a shorter time interval (48 h). The polysaccharide produced in molasses medium had a weight average molecular weight of 5.82 × 106 Da, degree of branching 12.68%, viscosity of 0.24 dL/g, and based on methylation analysis and NMR data, it did not significantly differ from levan obtained in the medium with 200 g/L sucrose. © 2018 Elsevier B.V.
T2  - International Journal of Biological Macromolecules
T1  - Production of levan by Bacillus licheniformis NS032 in sugar beet molasses-based medium
VL  - 121
SP  - 142
EP  - 151
DO  - 10.1016/j.ijbiomac.2018.10.019
ER  - 

@article{
author = "Gojgić-Cvijović, Gordana D. and Jakovljević, Dragica M. and Lončarević, Branka D. and Todorović, Nevena M. and Pergal, Marija V. and Ćirić, J. and Loos, K. and Beškoski, Vladimir and Vrvić, Miroslav M.",
year = "2019",
abstract = "The production of levan by Bacillus licheniformis NS032 in a medium based on sugar beet molasses was studied. High polysaccharide yields were produced by using diluted molasses (100–140 g/L of total sugars) with the addition of commercial sucrose up to 200 g/L of total sugars, as well as K2HPO4. A levan yield of 53.2 g/L was obtained on a medium optimized by response surface methodology, containing 62.6% of sugar originating from molasses, and 4.66 g/L of phosphate, with initial pH value of 7.2. In comparison to the media with 200 and 400 g/L sucrose, in the molasses optimized medium, the observed bacterial growth was faster, while the maximum production of polysaccharide was achieved over a shorter time interval (48 h). The polysaccharide produced in molasses medium had a weight average molecular weight of 5.82 × 106 Da, degree of branching 12.68%, viscosity of 0.24 dL/g, and based on methylation analysis and NMR data, it did not significantly differ from levan obtained in the medium with 200 g/L sucrose. © 2018 Elsevier B.V.",
journal = "International Journal of Biological Macromolecules",
title = "Production of levan by Bacillus licheniformis NS032 in sugar beet molasses-based medium",
volume = "121",
pages = "142-151",
doi = "10.1016/j.ijbiomac.2018.10.019"
}

Gojgić-Cvijović, G. D., Jakovljević, D. M., Lončarević, B. D., Todorović, N. M., Pergal, M. V., Ćirić, J., Loos, K., Beškoski, V.,& Vrvić, M. M.. (2019). Production of levan by Bacillus licheniformis NS032 in sugar beet molasses-based medium. in International Journal of Biological Macromolecules, 121, 142-151.
https://doi.org/10.1016/j.ijbiomac.2018.10.019

Gojgić-Cvijović GD, Jakovljević DM, Lončarević BD, Todorović NM, Pergal MV, Ćirić J, Loos K, Beškoski V, Vrvić MM. Production of levan by Bacillus licheniformis NS032 in sugar beet molasses-based medium. in International Journal of Biological Macromolecules. 2019;121:142-151.
doi:10.1016/j.ijbiomac.2018.10.019 .

Gojgić-Cvijović, Gordana D., Jakovljević, Dragica M., Lončarević, Branka D., Todorović, Nevena M., Pergal, Marija V., Ćirić, J., Loos, K., Beškoski, Vladimir, Vrvić, Miroslav M., "Production of levan by Bacillus licheniformis NS032 in sugar beet molasses-based medium" in International Journal of Biological Macromolecules, 121 (2019):142-151,
https://doi.org/10.1016/j.ijbiomac.2018.10.019 . .

TY  - JOUR
AU  - Gojgić-Cvijović, Gordana D.
AU  - Jakovljević, Dragica M.
AU  - Lončarević, Branka D.
AU  - Todorović, Nevena M.
AU  - Pergal, Marija V.
AU  - Ćirić, J.
AU  - Loos, K.
AU  - Beškoski, Vladimir
AU  - Vrvić, Miroslav M.
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2799
AB  - The production of levan by Bacillus licheniformis NS032 in a medium based on sugar beet molasses was studied. High polysaccharide yields were produced by using diluted molasses (100–140 g/L of total sugars) with the addition of commercial sucrose up to 200 g/L of total sugars, as well as K2HPO4. A levan yield of 53.2 g/L was obtained on a medium optimized by response surface methodology, containing 62.6% of sugar originating from molasses, and 4.66 g/L of phosphate, with initial pH value of 7.2. In comparison to the media with 200 and 400 g/L sucrose, in the molasses optimized medium, the observed bacterial growth was faster, while the maximum production of polysaccharide was achieved over a shorter time interval (48 h). The polysaccharide produced in molasses medium had a weight average molecular weight of 5.82 × 106 Da, degree of branching 12.68%, viscosity of 0.24 dL/g, and based on methylation analysis and NMR data, it did not significantly differ from levan obtained in the medium with 200 g/L sucrose. © 2018 Elsevier B.V.
T2  - International Journal of Biological Macromolecules
T1  - Production of levan by Bacillus licheniformis NS032 in sugar beet molasses-based medium
VL  - 121
SP  - 142
EP  - 151
DO  - 10.1016/j.ijbiomac.2018.10.019
ER  - 

@article{
author = "Gojgić-Cvijović, Gordana D. and Jakovljević, Dragica M. and Lončarević, Branka D. and Todorović, Nevena M. and Pergal, Marija V. and Ćirić, J. and Loos, K. and Beškoski, Vladimir and Vrvić, Miroslav M.",
year = "2019",
abstract = "The production of levan by Bacillus licheniformis NS032 in a medium based on sugar beet molasses was studied. High polysaccharide yields were produced by using diluted molasses (100–140 g/L of total sugars) with the addition of commercial sucrose up to 200 g/L of total sugars, as well as K2HPO4. A levan yield of 53.2 g/L was obtained on a medium optimized by response surface methodology, containing 62.6% of sugar originating from molasses, and 4.66 g/L of phosphate, with initial pH value of 7.2. In comparison to the media with 200 and 400 g/L sucrose, in the molasses optimized medium, the observed bacterial growth was faster, while the maximum production of polysaccharide was achieved over a shorter time interval (48 h). The polysaccharide produced in molasses medium had a weight average molecular weight of 5.82 × 106 Da, degree of branching 12.68%, viscosity of 0.24 dL/g, and based on methylation analysis and NMR data, it did not significantly differ from levan obtained in the medium with 200 g/L sucrose. © 2018 Elsevier B.V.",
journal = "International Journal of Biological Macromolecules",
title = "Production of levan by Bacillus licheniformis NS032 in sugar beet molasses-based medium",
volume = "121",
pages = "142-151",
doi = "10.1016/j.ijbiomac.2018.10.019"
}

Gojgić-Cvijović, G. D., Jakovljević, D. M., Lončarević, B. D., Todorović, N. M., Pergal, M. V., Ćirić, J., Loos, K., Beškoski, V.,& Vrvić, M. M.. (2019). Production of levan by Bacillus licheniformis NS032 in sugar beet molasses-based medium. in International Journal of Biological Macromolecules, 121, 142-151.
https://doi.org/10.1016/j.ijbiomac.2018.10.019

Gojgić-Cvijović GD, Jakovljević DM, Lončarević BD, Todorović NM, Pergal MV, Ćirić J, Loos K, Beškoski V, Vrvić MM. Production of levan by Bacillus licheniformis NS032 in sugar beet molasses-based medium. in International Journal of Biological Macromolecules. 2019;121:142-151.
doi:10.1016/j.ijbiomac.2018.10.019 .

Gojgić-Cvijović, Gordana D., Jakovljević, Dragica M., Lončarević, Branka D., Todorović, Nevena M., Pergal, Marija V., Ćirić, J., Loos, K., Beškoski, Vladimir, Vrvić, Miroslav M., "Production of levan by Bacillus licheniformis NS032 in sugar beet molasses-based medium" in International Journal of Biological Macromolecules, 121 (2019):142-151,
https://doi.org/10.1016/j.ijbiomac.2018.10.019 . .

TY  - DATA
AU  - Gojgić-Cvijović, Gordana D.
AU  - Jakovljević, Dragica M.
AU  - Lončarević, Branka D.
AU  - Todorović, Nevena M.
AU  - Pergal, Marija V.
AU  - Ćirić, J.
AU  - Loos, K.
AU  - Beškoski, Vladimir
AU  - Vrvić, Miroslav M.
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2943
T2  - International Journal of Biological Macromolecules
T1  - Supplementary data for the article: Gojgic-Cvijovic, G. D.; Jakovljevic, D. M.; Loncarevic, B. D.; Todorovic, N. M.; Pergal, M. V.; Ciric, J.; Loos, K.; Beškoski, V.; Vrvić, M. M. Production of Levan by Bacillus Licheniformis NS032 in Sugar Beet Molasses-Based Medium. International Journal of Biological Macromolecules 2019, 121, 142–151. https://doi.org/10.1016/j.ijbiomac.2018.10.019
UR  - https://hdl.handle.net/21.15107/rcub_cherry_2943
ER  - 

@misc{
author = "Gojgić-Cvijović, Gordana D. and Jakovljević, Dragica M. and Lončarević, Branka D. and Todorović, Nevena M. and Pergal, Marija V. and Ćirić, J. and Loos, K. and Beškoski, Vladimir and Vrvić, Miroslav M.",
year = "2019",
journal = "International Journal of Biological Macromolecules",
title = "Supplementary data for the article: Gojgic-Cvijovic, G. D.; Jakovljevic, D. M.; Loncarevic, B. D.; Todorovic, N. M.; Pergal, M. V.; Ciric, J.; Loos, K.; Beškoski, V.; Vrvić, M. M. Production of Levan by Bacillus Licheniformis NS032 in Sugar Beet Molasses-Based Medium. International Journal of Biological Macromolecules 2019, 121, 142–151. https://doi.org/10.1016/j.ijbiomac.2018.10.019",
url = "https://hdl.handle.net/21.15107/rcub_cherry_2943"
}

Gojgić-Cvijović, G. D., Jakovljević, D. M., Lončarević, B. D., Todorović, N. M., Pergal, M. V., Ćirić, J., Loos, K., Beškoski, V.,& Vrvić, M. M.. (2019). Supplementary data for the article: Gojgic-Cvijovic, G. D.; Jakovljevic, D. M.; Loncarevic, B. D.; Todorovic, N. M.; Pergal, M. V.; Ciric, J.; Loos, K.; Beškoski, V.; Vrvić, M. M. Production of Levan by Bacillus Licheniformis NS032 in Sugar Beet Molasses-Based Medium. International Journal of Biological Macromolecules 2019, 121, 142–151. https://doi.org/10.1016/j.ijbiomac.2018.10.019. in International Journal of Biological Macromolecules.
https://hdl.handle.net/21.15107/rcub_cherry_2943

Gojgić-Cvijović GD, Jakovljević DM, Lončarević BD, Todorović NM, Pergal MV, Ćirić J, Loos K, Beškoski V, Vrvić MM. Supplementary data for the article: Gojgic-Cvijovic, G. D.; Jakovljevic, D. M.; Loncarevic, B. D.; Todorovic, N. M.; Pergal, M. V.; Ciric, J.; Loos, K.; Beškoski, V.; Vrvić, M. M. Production of Levan by Bacillus Licheniformis NS032 in Sugar Beet Molasses-Based Medium. International Journal of Biological Macromolecules 2019, 121, 142–151. https://doi.org/10.1016/j.ijbiomac.2018.10.019. in International Journal of Biological Macromolecules. 2019;.
https://hdl.handle.net/21.15107/rcub_cherry_2943 .

Gojgić-Cvijović, Gordana D., Jakovljević, Dragica M., Lončarević, Branka D., Todorović, Nevena M., Pergal, Marija V., Ćirić, J., Loos, K., Beškoski, Vladimir, Vrvić, Miroslav M., "Supplementary data for the article: Gojgic-Cvijovic, G. D.; Jakovljevic, D. M.; Loncarevic, B. D.; Todorovic, N. M.; Pergal, M. V.; Ciric, J.; Loos, K.; Beškoski, V.; Vrvić, M. M. Production of Levan by Bacillus Licheniformis NS032 in Sugar Beet Molasses-Based Medium. International Journal of Biological Macromolecules 2019, 121, 142–151. https://doi.org/10.1016/j.ijbiomac.2018.10.019" in International Journal of Biological Macromolecules (2019),
https://hdl.handle.net/21.15107/rcub_cherry_2943 .

TY  - THES
AU  - Stefanović, Ivan
PY  - 2017
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=5726
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:17536/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=49962511
UR  - http://nardus.mpn.gov.rs/123456789/9356
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2762
AB  - Dve serije segmentiranih poliuretanskih kopolimera (SPU) i njihovih nanokompozita (SPUNC) su sintetisane na bazi α,ω-dihidroksi-poli(propilen-oksid)-b-poli(dimetilsiloksan)-b-poli(propilen-oksida) (PPO-PDMS, Mn = 3060 g mol-1) kao dela mekog segmenta i 4,4'-metilendifenildiizocijanata (MDI) i 1,4-butandiola (BD) kao komonomera tvrdog segmenta. Serija SPU-a je sintetisana dvostepenim postupkom poliadicije u smeńi rastvarača tetrahidrofurana (THF) i N,N-dimetilacetamida (DMAc) (1/1, v/v), uz prisustvo kalaj-oktoata kao katalizatora...
AB  - Two series of segmented polyurethane copolymers (SPU) and their nanocomposites (SPUNC) were synthesized based on α,ω-dihydroxy-poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly(propylene oxide) (PPO-PDMS, Mn = 3060 g mol-1) as the part of the soft segment and 4,4'-methylenediphenyldiisocyanate (MDI) and 1,4-butanediol (BD) as the comonomers of the hard segment. Series of SPU was synthesized via a two-step polyaddition reaction in solvent mixture of tetrahydrofuran (THF) and N,N-dimethylacetamide (DMAc) (1/1, v/v) and in the presence of tin-octoate as a catalyst...
PB  - Универзитет у Београду, Хемијски факултет
T2  - Универзитет у Београду
T1  - Sinteza i karakterizacija poliuretanskih kopolimera na bazi poli(propilenoksid)-block-poli(dimetilsiloksan)-block-poli(propilenoksida) i njihovih nanokopozita sa organomodifikovanom glinom
UR  - https://hdl.handle.net/21.15107/rcub_nardus_9356
ER  - 

@phdthesis{
author = "Stefanović, Ivan",
year = "2017",
abstract = "Dve serije segmentiranih poliuretanskih kopolimera (SPU) i njihovih nanokompozita (SPUNC) su sintetisane na bazi α,ω-dihidroksi-poli(propilen-oksid)-b-poli(dimetilsiloksan)-b-poli(propilen-oksida) (PPO-PDMS, Mn = 3060 g mol-1) kao dela mekog segmenta i 4,4'-metilendifenildiizocijanata (MDI) i 1,4-butandiola (BD) kao komonomera tvrdog segmenta. Serija SPU-a je sintetisana dvostepenim postupkom poliadicije u smeńi rastvarača tetrahidrofurana (THF) i N,N-dimetilacetamida (DMAc) (1/1, v/v), uz prisustvo kalaj-oktoata kao katalizatora..., Two series of segmented polyurethane copolymers (SPU) and their nanocomposites (SPUNC) were synthesized based on α,ω-dihydroxy-poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly(propylene oxide) (PPO-PDMS, Mn = 3060 g mol-1) as the part of the soft segment and 4,4'-methylenediphenyldiisocyanate (MDI) and 1,4-butanediol (BD) as the comonomers of the hard segment. Series of SPU was synthesized via a two-step polyaddition reaction in solvent mixture of tetrahydrofuran (THF) and N,N-dimethylacetamide (DMAc) (1/1, v/v) and in the presence of tin-octoate as a catalyst...",
publisher = "Универзитет у Београду, Хемијски факултет",
journal = "Универзитет у Београду",
title = "Sinteza i karakterizacija poliuretanskih kopolimera na bazi poli(propilenoksid)-block-poli(dimetilsiloksan)-block-poli(propilenoksida) i njihovih nanokopozita sa organomodifikovanom glinom",
url = "https://hdl.handle.net/21.15107/rcub_nardus_9356"
}

Stefanović, I.. (2017). Sinteza i karakterizacija poliuretanskih kopolimera na bazi poli(propilenoksid)-block-poli(dimetilsiloksan)-block-poli(propilenoksida) i njihovih nanokopozita sa organomodifikovanom glinom. in Универзитет у Београду
Универзитет у Београду, Хемијски факултет..
https://hdl.handle.net/21.15107/rcub_nardus_9356

Stefanović I. Sinteza i karakterizacija poliuretanskih kopolimera na bazi poli(propilenoksid)-block-poli(dimetilsiloksan)-block-poli(propilenoksida) i njihovih nanokopozita sa organomodifikovanom glinom. in Универзитет у Београду. 2017;.
https://hdl.handle.net/21.15107/rcub_nardus_9356 .

Stefanović, Ivan, "Sinteza i karakterizacija poliuretanskih kopolimera na bazi poli(propilenoksid)-block-poli(dimetilsiloksan)-block-poli(propilenoksida) i njihovih nanokopozita sa organomodifikovanom glinom" in Универзитет у Београду (2017),
https://hdl.handle.net/21.15107/rcub_nardus_9356 .

TY  - DATA
AU  - Panić, Vesna V.
AU  - Seslija, Sanja I.
AU  - Popović, Ivanka G.
AU  - Spasojević, Vuk D.
AU  - Popović, Aleksandar R.
AU  - Nikolić, Vladimir
AU  - Spasojević, Pavle M.
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3059
PB  - Amer Chemical Soc, Washington
T2  - Biomacromolecules
T1  - Supplementary data for article : Panic, V. V.; Seslija, S. I.; Popovic, I. G.; Spasojevic, V. D.; Popovic, A. R.; Nikolic, V. B.; Spasojevic, P. M. Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. Biomacromolecules 2017, 18 (12), 3881–3891. https://doi.org/10.1021/acs.biomac.7b00840
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3059
ER  - 

@misc{
author = "Panić, Vesna V. and Seslija, Sanja I. and Popović, Ivanka G. and Spasojević, Vuk D. and Popović, Aleksandar R. and Nikolić, Vladimir and Spasojević, Pavle M.",
year = "2017",
publisher = "Amer Chemical Soc, Washington",
journal = "Biomacromolecules",
title = "Supplementary data for article : Panic, V. V.; Seslija, S. I.; Popovic, I. G.; Spasojevic, V. D.; Popovic, A. R.; Nikolic, V. B.; Spasojevic, P. M. Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. Biomacromolecules 2017, 18 (12), 3881–3891. https://doi.org/10.1021/acs.biomac.7b00840",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3059"
}

Panić, V. V., Seslija, S. I., Popović, I. G., Spasojević, V. D., Popović, A. R., Nikolić, V.,& Spasojević, P. M.. (2017). Supplementary data for article : Panic, V. V.; Seslija, S. I.; Popovic, I. G.; Spasojevic, V. D.; Popovic, A. R.; Nikolic, V. B.; Spasojevic, P. M. Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. Biomacromolecules 2017, 18 (12), 3881–3891. https://doi.org/10.1021/acs.biomac.7b00840. in Biomacromolecules
Amer Chemical Soc, Washington..
https://hdl.handle.net/21.15107/rcub_cherry_3059

Panić VV, Seslija SI, Popović IG, Spasojević VD, Popović AR, Nikolić V, Spasojević PM. Supplementary data for article : Panic, V. V.; Seslija, S. I.; Popovic, I. G.; Spasojevic, V. D.; Popovic, A. R.; Nikolic, V. B.; Spasojevic, P. M. Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. Biomacromolecules 2017, 18 (12), 3881–3891. https://doi.org/10.1021/acs.biomac.7b00840. in Biomacromolecules. 2017;.
https://hdl.handle.net/21.15107/rcub_cherry_3059 .

Panić, Vesna V., Seslija, Sanja I., Popović, Ivanka G., Spasojević, Vuk D., Popović, Aleksandar R., Nikolić, Vladimir, Spasojević, Pavle M., "Supplementary data for article : Panic, V. V.; Seslija, S. I.; Popovic, I. G.; Spasojevic, V. D.; Popovic, A. R.; Nikolic, V. B.; Spasojevic, P. M. Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. Biomacromolecules 2017, 18 (12), 3881–3891. https://doi.org/10.1021/acs.biomac.7b00840" in Biomacromolecules (2017),
https://hdl.handle.net/21.15107/rcub_cherry_3059 .

TY  - JOUR
AU  - Panić, Vesna V.
AU  - Seslija, Sanja I.
AU  - Popović, Ivanka G.
AU  - Spasojević, Vuk D.
AU  - Popović, Aleksandar R.
AU  - Nikolić, Vladimir
AU  - Spasojević, Pavle M.
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3058
AB  - For the preparation of fully biobased unsaturated polyester resins (UPRs), the replacement of styrene with alternate nonpetroleum-based monomers turned out to be one of the most challenging tasks. Its complexity lies in the fact that reactive diluents (RD) have to have low viscosity and volatility, good compatibility with prepolymer, and capability to homopolymerize and copolymerize with its unsaturations. In this context, we directed our efforts to develop fully biobased UPRs using the dialkyl itaconates as an alternative to styrene. Therefore, a series of 100% biobased UPRs were prepared from itaconic acid and 1,2-propandiol and diluted by dialkyl itaconates. The resins were characterized by Fourier transform infrared spectroscopy, NMR, volatility, and viscosity measurements, while the cured samples were characterized by dynamic mechanical properties, thermomechanical analysis, thermogravimetric analysis data, and tensile tests. The influence of RD structure on the properties of cured samples was discussed in detail. It was shown that the prepared resins had evaporation rates of dialkyl itaconates of several orders of magnitude less compared to styrene. The cured resins with dimethyl itaconate showed comparable or even better thermal and mechanical properties compared to the one with styrene. This investigation showed that itaconic acid and dialkyl itaconates are promising bioresources for the preparation of fully biobased UPRs for mass consumption.
PB  - Amer Chemical Soc, Washington
T2  - Biomacromolecules
T1  - Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid
VL  - 18
IS  - 12
SP  - 3881
EP  - 3891
DO  - 10.1021/acs.biomac.7b00840
ER  - 

@article{
author = "Panić, Vesna V. and Seslija, Sanja I. and Popović, Ivanka G. and Spasojević, Vuk D. and Popović, Aleksandar R. and Nikolić, Vladimir and Spasojević, Pavle M.",
year = "2017",
abstract = "For the preparation of fully biobased unsaturated polyester resins (UPRs), the replacement of styrene with alternate nonpetroleum-based monomers turned out to be one of the most challenging tasks. Its complexity lies in the fact that reactive diluents (RD) have to have low viscosity and volatility, good compatibility with prepolymer, and capability to homopolymerize and copolymerize with its unsaturations. In this context, we directed our efforts to develop fully biobased UPRs using the dialkyl itaconates as an alternative to styrene. Therefore, a series of 100% biobased UPRs were prepared from itaconic acid and 1,2-propandiol and diluted by dialkyl itaconates. The resins were characterized by Fourier transform infrared spectroscopy, NMR, volatility, and viscosity measurements, while the cured samples were characterized by dynamic mechanical properties, thermomechanical analysis, thermogravimetric analysis data, and tensile tests. The influence of RD structure on the properties of cured samples was discussed in detail. It was shown that the prepared resins had evaporation rates of dialkyl itaconates of several orders of magnitude less compared to styrene. The cured resins with dimethyl itaconate showed comparable or even better thermal and mechanical properties compared to the one with styrene. This investigation showed that itaconic acid and dialkyl itaconates are promising bioresources for the preparation of fully biobased UPRs for mass consumption.",
publisher = "Amer Chemical Soc, Washington",
journal = "Biomacromolecules",
title = "Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid",
volume = "18",
number = "12",
pages = "3881-3891",
doi = "10.1021/acs.biomac.7b00840"
}

Panić, V. V., Seslija, S. I., Popović, I. G., Spasojević, V. D., Popović, A. R., Nikolić, V.,& Spasojević, P. M.. (2017). Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. in Biomacromolecules
Amer Chemical Soc, Washington., 18(12), 3881-3891.
https://doi.org/10.1021/acs.biomac.7b00840

Panić VV, Seslija SI, Popović IG, Spasojević VD, Popović AR, Nikolić V, Spasojević PM. Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. in Biomacromolecules. 2017;18(12):3881-3891.
doi:10.1021/acs.biomac.7b00840 .

Panić, Vesna V., Seslija, Sanja I., Popović, Ivanka G., Spasojević, Vuk D., Popović, Aleksandar R., Nikolić, Vladimir, Spasojević, Pavle M., "Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid" in Biomacromolecules, 18, no. 12 (2017):3881-3891,
https://doi.org/10.1021/acs.biomac.7b00840 . .

TY  - JOUR
AU  - Panić, Vesna V.
AU  - Seslija, Sanja I.
AU  - Popović, Ivanka G.
AU  - Spasojević, Vuk D.
AU  - Popović, Aleksandar R.
AU  - Nikolić, Vladimir
AU  - Spasojević, Pavle M.
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2568
AB  - For the preparation of fully biobased unsaturated polyester resins (UPRs), the replacement of styrene with alternate nonpetroleum-based monomers turned out to be one of the most challenging tasks. Its complexity lies in the fact that reactive diluents (RD) have to have low viscosity and volatility, good compatibility with prepolymer, and capability to homopolymerize and copolymerize with its unsaturations. In this context, we directed our efforts to develop fully biobased UPRs using the dialkyl itaconates as an alternative to styrene. Therefore, a series of 100% biobased UPRs were prepared from itaconic acid and 1,2-propandiol and diluted by dialkyl itaconates. The resins were characterized by Fourier transform infrared spectroscopy, NMR, volatility, and viscosity measurements, while the cured samples were characterized by dynamic mechanical properties, thermomechanical analysis, thermogravimetric analysis data, and tensile tests. The influence of RD structure on the properties of cured samples was discussed in detail. It was shown that the prepared resins had evaporation rates of dialkyl itaconates of several orders of magnitude less compared to styrene. The cured resins with dimethyl itaconate showed comparable or even better thermal and mechanical properties compared to the one with styrene. This investigation showed that itaconic acid and dialkyl itaconates are promising bioresources for the preparation of fully biobased UPRs for mass consumption.
PB  - Amer Chemical Soc, Washington
T2  - Biomacromolecules
T1  - Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid
VL  - 18
IS  - 12
SP  - 3881
EP  - 3891
DO  - 10.1021/acs.biomac.7b00840
ER  - 

@article{
author = "Panić, Vesna V. and Seslija, Sanja I. and Popović, Ivanka G. and Spasojević, Vuk D. and Popović, Aleksandar R. and Nikolić, Vladimir and Spasojević, Pavle M.",
year = "2017",
abstract = "For the preparation of fully biobased unsaturated polyester resins (UPRs), the replacement of styrene with alternate nonpetroleum-based monomers turned out to be one of the most challenging tasks. Its complexity lies in the fact that reactive diluents (RD) have to have low viscosity and volatility, good compatibility with prepolymer, and capability to homopolymerize and copolymerize with its unsaturations. In this context, we directed our efforts to develop fully biobased UPRs using the dialkyl itaconates as an alternative to styrene. Therefore, a series of 100% biobased UPRs were prepared from itaconic acid and 1,2-propandiol and diluted by dialkyl itaconates. The resins were characterized by Fourier transform infrared spectroscopy, NMR, volatility, and viscosity measurements, while the cured samples were characterized by dynamic mechanical properties, thermomechanical analysis, thermogravimetric analysis data, and tensile tests. The influence of RD structure on the properties of cured samples was discussed in detail. It was shown that the prepared resins had evaporation rates of dialkyl itaconates of several orders of magnitude less compared to styrene. The cured resins with dimethyl itaconate showed comparable or even better thermal and mechanical properties compared to the one with styrene. This investigation showed that itaconic acid and dialkyl itaconates are promising bioresources for the preparation of fully biobased UPRs for mass consumption.",
publisher = "Amer Chemical Soc, Washington",
journal = "Biomacromolecules",
title = "Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid",
volume = "18",
number = "12",
pages = "3881-3891",
doi = "10.1021/acs.biomac.7b00840"
}

Panić, V. V., Seslija, S. I., Popović, I. G., Spasojević, V. D., Popović, A. R., Nikolić, V.,& Spasojević, P. M.. (2017). Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. in Biomacromolecules
Amer Chemical Soc, Washington., 18(12), 3881-3891.
https://doi.org/10.1021/acs.biomac.7b00840

Panić VV, Seslija SI, Popović IG, Spasojević VD, Popović AR, Nikolić V, Spasojević PM. Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid. in Biomacromolecules. 2017;18(12):3881-3891.
doi:10.1021/acs.biomac.7b00840 .

Panić, Vesna V., Seslija, Sanja I., Popović, Ivanka G., Spasojević, Vuk D., Popović, Aleksandar R., Nikolić, Vladimir, Spasojević, Pavle M., "Simple One-Pot Synthesis of Fully Biobased Unsaturated Polyester Resins Based on Itaconic Acid" in Biomacromolecules, 18, no. 12 (2017):3881-3891,
https://doi.org/10.1021/acs.biomac.7b00840 . .

TY  - JOUR
AU  - Ponjavic, Marijana
AU  - Nikolić, Marija S.
AU  - Nikodinović-Runić, Jasmina
AU  - Jeremić, Sanja
AU  - Stevanovic, Sanja
AU  - Djonlagic, Jasna
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2393
AB  - Short-term hydrolytic and enzymatic degradation of poly(epsilon-caprolactone) (PCL), one series of triblock (PCL/PEO/PCL) and the other of diblock (PCL/PEO) copolymers, with a low content of hydrophilic PEO segments is presented. The effect of the introduction of PEO as the central or lateral segment in the PCL chain on copolymer hydrolysis and biodegradation properties was investigated. FUR results revealed higher hydrolytic degradation susceptibility of diblock copolymers due to a higher hydrophilicity compared to PCL and triblock copolymers. Enzymatic degradation was tested using cell-free extracts of Pseudomonas aeruginosa PAO1, for two weeks by following the weight loss, changes in surface roughness, and changes in carbonyl and crystallinity index. The results confirmed that all samples underwent enzymatic degradation through surface erosion which was accompanied with a decrease in molecular weights. Diblock copolymers showed significantly higher weight loss and decrease in molecular weight in comparison to PCL itself and triblock copolymers. AFM analysis confirmed significant surface erosion and increase in RMS values. In addition, biodegradation of polymer films was tested in compost model system at 37 degrees C, where an effective degradation of block copolymers was observed. (C) 2016 Elsevier Ltd. All rights reserved.
PB  - Elsevier Sci Ltd, Oxford
T2  - Polymer Testing
T1  - Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions
VL  - 57
SP  - 67
EP  - 77
DO  - 10.1016/j.polymertesting.2016.11.018
ER  - 

@article{
author = "Ponjavic, Marijana and Nikolić, Marija S. and Nikodinović-Runić, Jasmina and Jeremić, Sanja and Stevanovic, Sanja and Djonlagic, Jasna",
year = "2017",
abstract = "Short-term hydrolytic and enzymatic degradation of poly(epsilon-caprolactone) (PCL), one series of triblock (PCL/PEO/PCL) and the other of diblock (PCL/PEO) copolymers, with a low content of hydrophilic PEO segments is presented. The effect of the introduction of PEO as the central or lateral segment in the PCL chain on copolymer hydrolysis and biodegradation properties was investigated. FUR results revealed higher hydrolytic degradation susceptibility of diblock copolymers due to a higher hydrophilicity compared to PCL and triblock copolymers. Enzymatic degradation was tested using cell-free extracts of Pseudomonas aeruginosa PAO1, for two weeks by following the weight loss, changes in surface roughness, and changes in carbonyl and crystallinity index. The results confirmed that all samples underwent enzymatic degradation through surface erosion which was accompanied with a decrease in molecular weights. Diblock copolymers showed significantly higher weight loss and decrease in molecular weight in comparison to PCL itself and triblock copolymers. AFM analysis confirmed significant surface erosion and increase in RMS values. In addition, biodegradation of polymer films was tested in compost model system at 37 degrees C, where an effective degradation of block copolymers was observed. (C) 2016 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Polymer Testing",
title = "Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions",
volume = "57",
pages = "67-77",
doi = "10.1016/j.polymertesting.2016.11.018"
}

Ponjavic, M., Nikolić, M. S., Nikodinović-Runić, J., Jeremić, S., Stevanovic, S.,& Djonlagic, J.. (2017). Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions. in Polymer Testing
Elsevier Sci Ltd, Oxford., 57, 67-77.
https://doi.org/10.1016/j.polymertesting.2016.11.018

Ponjavic M, Nikolić MS, Nikodinović-Runić J, Jeremić S, Stevanovic S, Djonlagic J. Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions. in Polymer Testing. 2017;57:67-77.
doi:10.1016/j.polymertesting.2016.11.018 .

Ponjavic, Marijana, Nikolić, Marija S., Nikodinović-Runić, Jasmina, Jeremić, Sanja, Stevanovic, Sanja, Djonlagic, Jasna, "Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions" in Polymer Testing, 57 (2017):67-77,
https://doi.org/10.1016/j.polymertesting.2016.11.018 . .

TY  - JOUR
AU  - Stefanović, Ivan S.
AU  - Špírková, Milena
AU  - Poreba, Rafal
AU  - Steinhart, Miloš
AU  - Ostojić, Sanja B.
AU  - Tešević, Vele
AU  - Pergal, Marija V.
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1918
AB  - Segmented polyurethanes (PURs) were prepared from alpha,omega-dihydroxypoly(propylene oxide)-b-poly-(dimethylsiloxane)-b-poly(propyleneoxide) (PPO-PDMS) as the soft segment and 4,4'-diphenylmethane diisocyanate and 1,4-butanediol as the hard segment, via two-step polyaddition process in solvent mixture. The content of hard segments is in the range from 10 to 60 wt %. The structure and composition of PURs are determined by H-1 NMR, C-13 NMR, and ATR-FTIR spectroscopy. Incorporation of PPO-PDMS leads to improvements in thermal stability. Small- and wide-angle X-ray scattering experiments indicate that synthesized PURs with higher content of hard segments have more developed and distinct phase separated morphologies. Dynamic mechanical thermal analysis shows that copolymers have multiple transitions, characteristic for phase-separated systems. The water contact angle increases while water absorption decreases with increasing content of PPO-PDMS segments. The PURs prepared in this work show good thermal, mechanical features with phase separated morphology and high water resistance that enable their widespread application.
PB  - Amer Chemical Soc, Washington
T2  - Industrial and Engineering Chemistry Research
T1  - Study of the Properties of Urethane-Siloxane Copolymers Based on Poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly(propylene oxide) Soft Segments
VL  - 55
IS  - 14
SP  - 3960
EP  - 3973
DO  - 10.1021/acs.iecr.5b04975
ER  - 

@article{
author = "Stefanović, Ivan S. and Špírková, Milena and Poreba, Rafal and Steinhart, Miloš and Ostojić, Sanja B. and Tešević, Vele and Pergal, Marija V.",
year = "2016",
abstract = "Segmented polyurethanes (PURs) were prepared from alpha,omega-dihydroxypoly(propylene oxide)-b-poly-(dimethylsiloxane)-b-poly(propyleneoxide) (PPO-PDMS) as the soft segment and 4,4'-diphenylmethane diisocyanate and 1,4-butanediol as the hard segment, via two-step polyaddition process in solvent mixture. The content of hard segments is in the range from 10 to 60 wt %. The structure and composition of PURs are determined by H-1 NMR, C-13 NMR, and ATR-FTIR spectroscopy. Incorporation of PPO-PDMS leads to improvements in thermal stability. Small- and wide-angle X-ray scattering experiments indicate that synthesized PURs with higher content of hard segments have more developed and distinct phase separated morphologies. Dynamic mechanical thermal analysis shows that copolymers have multiple transitions, characteristic for phase-separated systems. The water contact angle increases while water absorption decreases with increasing content of PPO-PDMS segments. The PURs prepared in this work show good thermal, mechanical features with phase separated morphology and high water resistance that enable their widespread application.",
publisher = "Amer Chemical Soc, Washington",
journal = "Industrial and Engineering Chemistry Research",
title = "Study of the Properties of Urethane-Siloxane Copolymers Based on Poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly(propylene oxide) Soft Segments",
volume = "55",
number = "14",
pages = "3960-3973",
doi = "10.1021/acs.iecr.5b04975"
}

Stefanović, I. S., Špírková, M., Poreba, R., Steinhart, M., Ostojić, S. B., Tešević, V.,& Pergal, M. V.. (2016). Study of the Properties of Urethane-Siloxane Copolymers Based on Poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly(propylene oxide) Soft Segments. in Industrial and Engineering Chemistry Research
Amer Chemical Soc, Washington., 55(14), 3960-3973.
https://doi.org/10.1021/acs.iecr.5b04975

Stefanović IS, Špírková M, Poreba R, Steinhart M, Ostojić SB, Tešević V, Pergal MV. Study of the Properties of Urethane-Siloxane Copolymers Based on Poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly(propylene oxide) Soft Segments. in Industrial and Engineering Chemistry Research. 2016;55(14):3960-3973.
doi:10.1021/acs.iecr.5b04975 .

Stefanović, Ivan S., Špírková, Milena, Poreba, Rafal, Steinhart, Miloš, Ostojić, Sanja B., Tešević, Vele, Pergal, Marija V., "Study of the Properties of Urethane-Siloxane Copolymers Based on Poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly(propylene oxide) Soft Segments" in Industrial and Engineering Chemistry Research, 55, no. 14 (2016):3960-3973,
https://doi.org/10.1021/acs.iecr.5b04975 . .

TY  - JOUR
AU  - Stefanović, Ivan S.
AU  - Gođevac, Dejan
AU  - Špírková, Milena
AU  - Jovančić, Petar
AU  - Tešević, Vele
AU  - Milačić, Vesna
AU  - Pergal, Marija V.
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2379
AB  - Segmented thermoplastic polyurethane copolymers (PURs) were synthesized using 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol as the hard segment and alpha,omega-dihydroxy-poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly(propylene oxide) (PPO-PDMS) as the soft segment. The content of incorporated soft segments in PURs varied in the range from 40 to 90 wt.%. The structure, molecular weights and crystallinity of obtained copolymers were monitored by FTIR, H-1- and 2D-NMR spectroscopy, and GPC and DSC analysis, respectively. Surface free energy analysis indicates the presence of hydrophobic (siloxane) groups on the surface, giving highly hydrophobic nature to the obtained PURs films. Water absorption measurements showed that the increase of the hydrophobic PPO-PDMS segment content led to the decrease of percentage of absorbed water in copolymers. SEM and AFM analysis revealed that copolymers with lower content of PPO-PDMS segments have higher microphase separation between segments. The results obtained in this work indicate that synthesized PURs based on PPO-PDMS demonstrated proper surface and morphological properties with a great potential for variety of applications such as hydrophobic coatings in biomedicine.
PB  - Assoc Chemical Engineers Serbia, Belgrade
T2  - Hemijska industrija
T1  - Impact of the poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly-(propylene oxide) macrodiols on the surface-related properties of polyurethane copolymers
VL  - 70
IS  - 6
SP  - 725
EP  - 738
DO  - 10.2298/HEMIND151127009S
ER  - 

@article{
author = "Stefanović, Ivan S. and Gođevac, Dejan and Špírková, Milena and Jovančić, Petar and Tešević, Vele and Milačić, Vesna and Pergal, Marija V.",
year = "2016",
abstract = "Segmented thermoplastic polyurethane copolymers (PURs) were synthesized using 4,4'-methylenediphenyl diisocyanate and 1,4-butanediol as the hard segment and alpha,omega-dihydroxy-poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly(propylene oxide) (PPO-PDMS) as the soft segment. The content of incorporated soft segments in PURs varied in the range from 40 to 90 wt.%. The structure, molecular weights and crystallinity of obtained copolymers were monitored by FTIR, H-1- and 2D-NMR spectroscopy, and GPC and DSC analysis, respectively. Surface free energy analysis indicates the presence of hydrophobic (siloxane) groups on the surface, giving highly hydrophobic nature to the obtained PURs films. Water absorption measurements showed that the increase of the hydrophobic PPO-PDMS segment content led to the decrease of percentage of absorbed water in copolymers. SEM and AFM analysis revealed that copolymers with lower content of PPO-PDMS segments have higher microphase separation between segments. The results obtained in this work indicate that synthesized PURs based on PPO-PDMS demonstrated proper surface and morphological properties with a great potential for variety of applications such as hydrophobic coatings in biomedicine.",
publisher = "Assoc Chemical Engineers Serbia, Belgrade",
journal = "Hemijska industrija",
title = "Impact of the poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly-(propylene oxide) macrodiols on the surface-related properties of polyurethane copolymers",
volume = "70",
number = "6",
pages = "725-738",
doi = "10.2298/HEMIND151127009S"
}

Stefanović, I. S., Gođevac, D., Špírková, M., Jovančić, P., Tešević, V., Milačić, V.,& Pergal, M. V.. (2016). Impact of the poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly-(propylene oxide) macrodiols on the surface-related properties of polyurethane copolymers. in Hemijska industrija
Assoc Chemical Engineers Serbia, Belgrade., 70(6), 725-738.
https://doi.org/10.2298/HEMIND151127009S

Stefanović IS, Gođevac D, Špírková M, Jovančić P, Tešević V, Milačić V, Pergal MV. Impact of the poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly-(propylene oxide) macrodiols on the surface-related properties of polyurethane copolymers. in Hemijska industrija. 2016;70(6):725-738.
doi:10.2298/HEMIND151127009S .

Stefanović, Ivan S., Gođevac, Dejan, Špírková, Milena, Jovančić, Petar, Tešević, Vele, Milačić, Vesna, Pergal, Marija V., "Impact of the poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly-(propylene oxide) macrodiols on the surface-related properties of polyurethane copolymers" in Hemijska industrija, 70, no. 6 (2016):725-738,
https://doi.org/10.2298/HEMIND151127009S . .

TY  - DATA
AU  - Stefanović, Ivan S.
AU  - Špírková, Milena
AU  - Poreba, Rafal
AU  - Steinhart, Miloš
AU  - Ostojić, Sanja B.
AU  - Tešević, Vele
AU  - Pergal, Marija V.
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3618
PB  - Amer Chemical Soc, Washington
T2  - Industrial and Engineering Chemistry Research
T1  - Supplementary material for the article: Stefanović, I. S.; Špírková, M.; Poreba, R.; Steinhart, M.; Ostojić, S.; Tešević, V.; Pergal, M. V. Study of the Properties of Urethane-Siloxane Copolymers Based on Poly(Propylene Oxide)-b-Poly(Dimethylsiloxane)-b-Poly(Propylene Oxide) Soft Segments. Industrial and Engineering Chemistry Research 2016, 55 (14), 3960–3973. https://doi.org/10.1021/acs.iecr.5b04975
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3618
ER  - 

@misc{
author = "Stefanović, Ivan S. and Špírková, Milena and Poreba, Rafal and Steinhart, Miloš and Ostojić, Sanja B. and Tešević, Vele and Pergal, Marija V.",
year = "2016",
publisher = "Amer Chemical Soc, Washington",
journal = "Industrial and Engineering Chemistry Research",
title = "Supplementary material for the article: Stefanović, I. S.; Špírková, M.; Poreba, R.; Steinhart, M.; Ostojić, S.; Tešević, V.; Pergal, M. V. Study of the Properties of Urethane-Siloxane Copolymers Based on Poly(Propylene Oxide)-b-Poly(Dimethylsiloxane)-b-Poly(Propylene Oxide) Soft Segments. Industrial and Engineering Chemistry Research 2016, 55 (14), 3960–3973. https://doi.org/10.1021/acs.iecr.5b04975",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3618"
}

Stefanović, I. S., Špírková, M., Poreba, R., Steinhart, M., Ostojić, S. B., Tešević, V.,& Pergal, M. V.. (2016). Supplementary material for the article: Stefanović, I. S.; Špírková, M.; Poreba, R.; Steinhart, M.; Ostojić, S.; Tešević, V.; Pergal, M. V. Study of the Properties of Urethane-Siloxane Copolymers Based on Poly(Propylene Oxide)-b-Poly(Dimethylsiloxane)-b-Poly(Propylene Oxide) Soft Segments. Industrial and Engineering Chemistry Research 2016, 55 (14), 3960–3973. https://doi.org/10.1021/acs.iecr.5b04975. in Industrial and Engineering Chemistry Research
Amer Chemical Soc, Washington..
https://hdl.handle.net/21.15107/rcub_cherry_3618

Stefanović IS, Špírková M, Poreba R, Steinhart M, Ostojić SB, Tešević V, Pergal MV. Supplementary material for the article: Stefanović, I. S.; Špírková, M.; Poreba, R.; Steinhart, M.; Ostojić, S.; Tešević, V.; Pergal, M. V. Study of the Properties of Urethane-Siloxane Copolymers Based on Poly(Propylene Oxide)-b-Poly(Dimethylsiloxane)-b-Poly(Propylene Oxide) Soft Segments. Industrial and Engineering Chemistry Research 2016, 55 (14), 3960–3973. https://doi.org/10.1021/acs.iecr.5b04975. in Industrial and Engineering Chemistry Research. 2016;.
https://hdl.handle.net/21.15107/rcub_cherry_3618 .

Stefanović, Ivan S., Špírková, Milena, Poreba, Rafal, Steinhart, Miloš, Ostojić, Sanja B., Tešević, Vele, Pergal, Marija V., "Supplementary material for the article: Stefanović, I. S.; Špírková, M.; Poreba, R.; Steinhart, M.; Ostojić, S.; Tešević, V.; Pergal, M. V. Study of the Properties of Urethane-Siloxane Copolymers Based on Poly(Propylene Oxide)-b-Poly(Dimethylsiloxane)-b-Poly(Propylene Oxide) Soft Segments. Industrial and Engineering Chemistry Research 2016, 55 (14), 3960–3973. https://doi.org/10.1021/acs.iecr.5b04975" in Industrial and Engineering Chemistry Research (2016),
https://hdl.handle.net/21.15107/rcub_cherry_3618 .

TY  - JOUR
AU  - Spasojevic, Pavle
AU  - Panic, Vesna
AU  - Seslija, Sanja
AU  - Nikolić, Vladimir
AU  - Popović, Ivanka G.
AU  - Veličković, Sava
PY  - 2015
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1992
AB  - The aim of this work was to examine the possibility of modification of commercial denture base materials with itaconic acid esters, in order to obtain materials with lower toxicity and higher biocompatibility. Despite their relatively higher price compared to methacrylates, itaconic acid and itaconates are materials of choice for environmentally friendly applications, because they are not produced from petrochemical sources, but from plant products. A commercial system based on poly(methyl methacrylate) was modified using ditetrahydrofurfuryl itaconate (DTHFI), whereby the ratio of DTHFI was varied from 2.5 to 10 % by weight. Copolymerization was confirmed using FTIR spectroscopy, while SEM analysis showed the absence of micro defects and pores in the structure. The effects of the itaconate content on the absorption of fluids, the residual monomer content, thermal, dynamic-mechanical and mechanical properties (hardness, toughness, stress and elongation at break) were investigated. It was found that the addition of DTHFI significantly reduced the amount of residual methyl methacrylate, which made these materials less toxic. It was shown that increasing the DTHFI content resulted in materials with decreased glass transition temperatures, as well as with decreased storage modulus, ultimate tensile strength and impact fracture resistance; however the mechanical properties were in the rang prescribed by ADA standards, and the materials could be used in practice. The deterioration in mechanical properties was therefore worthwhile in order to gain lower toxicity of the leached monomer.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Poly(methyl methacrylate) denture base materials modified with ditetrahydrofurfuryl itaconate: Significant applicative properties
VL  - 80
IS  - 9
SP  - 1177
DO  - 10.2298/JSC150123034S
ER  - 

@article{
author = "Spasojevic, Pavle and Panic, Vesna and Seslija, Sanja and Nikolić, Vladimir and Popović, Ivanka G. and Veličković, Sava",
year = "2015",
abstract = "The aim of this work was to examine the possibility of modification of commercial denture base materials with itaconic acid esters, in order to obtain materials with lower toxicity and higher biocompatibility. Despite their relatively higher price compared to methacrylates, itaconic acid and itaconates are materials of choice for environmentally friendly applications, because they are not produced from petrochemical sources, but from plant products. A commercial system based on poly(methyl methacrylate) was modified using ditetrahydrofurfuryl itaconate (DTHFI), whereby the ratio of DTHFI was varied from 2.5 to 10 % by weight. Copolymerization was confirmed using FTIR spectroscopy, while SEM analysis showed the absence of micro defects and pores in the structure. The effects of the itaconate content on the absorption of fluids, the residual monomer content, thermal, dynamic-mechanical and mechanical properties (hardness, toughness, stress and elongation at break) were investigated. It was found that the addition of DTHFI significantly reduced the amount of residual methyl methacrylate, which made these materials less toxic. It was shown that increasing the DTHFI content resulted in materials with decreased glass transition temperatures, as well as with decreased storage modulus, ultimate tensile strength and impact fracture resistance; however the mechanical properties were in the rang prescribed by ADA standards, and the materials could be used in practice. The deterioration in mechanical properties was therefore worthwhile in order to gain lower toxicity of the leached monomer.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Poly(methyl methacrylate) denture base materials modified with ditetrahydrofurfuryl itaconate: Significant applicative properties",
volume = "80",
number = "9",
pages = "1177",
doi = "10.2298/JSC150123034S"
}

Spasojevic, P., Panic, V., Seslija, S., Nikolić, V., Popović, I. G.,& Veličković, S.. (2015). Poly(methyl methacrylate) denture base materials modified with ditetrahydrofurfuryl itaconate: Significant applicative properties. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 80(9), 1177.
https://doi.org/10.2298/JSC150123034S

Spasojevic P, Panic V, Seslija S, Nikolić V, Popović IG, Veličković S. Poly(methyl methacrylate) denture base materials modified with ditetrahydrofurfuryl itaconate: Significant applicative properties. in Journal of the Serbian Chemical Society. 2015;80(9):1177.
doi:10.2298/JSC150123034S .

Spasojevic, Pavle, Panic, Vesna, Seslija, Sanja, Nikolić, Vladimir, Popović, Ivanka G., Veličković, Sava, "Poly(methyl methacrylate) denture base materials modified with ditetrahydrofurfuryl itaconate: Significant applicative properties" in Journal of the Serbian Chemical Society, 80, no. 9 (2015):1177,
https://doi.org/10.2298/JSC150123034S . .

TY  - JOUR
AU  - Nikolić, Vladimir
AU  - Veličković, Sava
AU  - Popović, Aleksandar R.
PY  - 2014
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1495
AB  - Polystyrene graft corn starch copolymers (PS-g-starch) were synthesized by emulsion polymerization using sodium dodecylsulfate (SDS) as the emulsifier and potassium persulfate (PPS) as the initiator. Influences of temperature (25-75 A degrees C), monomer (0.56-0.96 mol/dm(3)) and initiator (0.007-0.020 mol/dm(3)) concentration, reaction time (15-300 min), and type of amine activator and its concentration (0.005-0.08 mol/dm(3)) on the percentage of grafting (G, %) and yield (Y, %) were investigated. Amines showed dual impact on grafting reaction, some of them were activators and other were inhibitors, where N,N-dimethylethanolamine gave the maximal and 1-(2-hydroxyethyl) piperazine gave the minimal value of percentage of grafting. The maximum percentage of grafting was 32.55 %, while in case of piperazine derivate percentage of grafting was zero. Successful grafting was confirmed by Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). The maximum percentage of grafting was obtained under the following reaction conditions: 10.00 g of starch, monomer concentration was 0.96 mol/dm(3), initiator concentration was 0.015 mol/dm(3), reaction time was 15 min, temperature of 75 A degrees C, and N,N-dimethylethanolamine was used as activator in concentration of 0.01 mol/dm(3).
PB  - Springer, Dordrecht
T2  - Journal of Polymer Research
T1  - Influence of amine activators and reaction parameters on grafting reaction between polystyrene and starch
VL  - 21
IS  - 2
DO  - 10.1007/s10965-014-0363-1
ER  - 

@article{
author = "Nikolić, Vladimir and Veličković, Sava and Popović, Aleksandar R.",
year = "2014",
abstract = "Polystyrene graft corn starch copolymers (PS-g-starch) were synthesized by emulsion polymerization using sodium dodecylsulfate (SDS) as the emulsifier and potassium persulfate (PPS) as the initiator. Influences of temperature (25-75 A degrees C), monomer (0.56-0.96 mol/dm(3)) and initiator (0.007-0.020 mol/dm(3)) concentration, reaction time (15-300 min), and type of amine activator and its concentration (0.005-0.08 mol/dm(3)) on the percentage of grafting (G, %) and yield (Y, %) were investigated. Amines showed dual impact on grafting reaction, some of them were activators and other were inhibitors, where N,N-dimethylethanolamine gave the maximal and 1-(2-hydroxyethyl) piperazine gave the minimal value of percentage of grafting. The maximum percentage of grafting was 32.55 %, while in case of piperazine derivate percentage of grafting was zero. Successful grafting was confirmed by Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). The maximum percentage of grafting was obtained under the following reaction conditions: 10.00 g of starch, monomer concentration was 0.96 mol/dm(3), initiator concentration was 0.015 mol/dm(3), reaction time was 15 min, temperature of 75 A degrees C, and N,N-dimethylethanolamine was used as activator in concentration of 0.01 mol/dm(3).",
publisher = "Springer, Dordrecht",
journal = "Journal of Polymer Research",
title = "Influence of amine activators and reaction parameters on grafting reaction between polystyrene and starch",
volume = "21",
number = "2",
doi = "10.1007/s10965-014-0363-1"
}

Nikolić, V., Veličković, S.,& Popović, A. R.. (2014). Influence of amine activators and reaction parameters on grafting reaction between polystyrene and starch. in Journal of Polymer Research
Springer, Dordrecht., 21(2).
https://doi.org/10.1007/s10965-014-0363-1

Nikolić V, Veličković S, Popović AR. Influence of amine activators and reaction parameters on grafting reaction between polystyrene and starch. in Journal of Polymer Research. 2014;21(2).
doi:10.1007/s10965-014-0363-1 .

Nikolić, Vladimir, Veličković, Sava, Popović, Aleksandar R., "Influence of amine activators and reaction parameters on grafting reaction between polystyrene and starch" in Journal of Polymer Research, 21, no. 2 (2014),
https://doi.org/10.1007/s10965-014-0363-1 . .

TY  - JOUR
AU  - Nikolić, Vladimir
AU  - Veličković, Sava
AU  - Popović, Aleksandar R.
PY  - 2014
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1831
AB  - Materials based on polystyrene and starch copolymers are used in food packaging, water pollution treatment, and textile industry, and their biodegradability is a desired characteristic. In order to examine the degradation patterns of modified, biodegradable derivates of polystyrene, which may keep its excellent technical features but be more environmentally friendly at the same time, polystyrene-graft-starch biomaterials obtained by emulsion polymerization in the presence of new type of initiator/activator pair (potassium persulfate/different amines) were subjected to 6-month biodegradation by burial method in three different types of commercially available soils: soil rich in humus and soil for cactus and orchid growing. Biodegradation was monitored by mass decrease, and the highest degradation rate was achieved in soil for cactus growing (81.30 %). Statistical analysis proved that microorganisms in different soil samples have different ability of biodegradation, and there is a significant negative correlation between the share of polystyrene in copolymer and degree of biodegradation. Grafting of polystyrene on starch on one hand prevents complete degradation of starch that is present (with maximal percentage of degraded starch ranging from 55 to 93 %), while on the other hand there is an upper limit of share of polystyrene in the copolymer (ranging from 37 to 77 %) that is preventing biodegradation of degradable part of copolymers.
PB  - Springer Heidelberg, Heidelberg
T2  - Environmental Science and Pollution Research
T1  - Biodegradation of polystyrene-graft-starch copolymers in three different types of soil
VL  - 21
IS  - 16
SP  - 9877
EP  - 9886
DO  - 10.1007/s11356-014-2946-0
ER  - 

@article{
author = "Nikolić, Vladimir and Veličković, Sava and Popović, Aleksandar R.",
year = "2014",
abstract = "Materials based on polystyrene and starch copolymers are used in food packaging, water pollution treatment, and textile industry, and their biodegradability is a desired characteristic. In order to examine the degradation patterns of modified, biodegradable derivates of polystyrene, which may keep its excellent technical features but be more environmentally friendly at the same time, polystyrene-graft-starch biomaterials obtained by emulsion polymerization in the presence of new type of initiator/activator pair (potassium persulfate/different amines) were subjected to 6-month biodegradation by burial method in three different types of commercially available soils: soil rich in humus and soil for cactus and orchid growing. Biodegradation was monitored by mass decrease, and the highest degradation rate was achieved in soil for cactus growing (81.30 %). Statistical analysis proved that microorganisms in different soil samples have different ability of biodegradation, and there is a significant negative correlation between the share of polystyrene in copolymer and degree of biodegradation. Grafting of polystyrene on starch on one hand prevents complete degradation of starch that is present (with maximal percentage of degraded starch ranging from 55 to 93 %), while on the other hand there is an upper limit of share of polystyrene in the copolymer (ranging from 37 to 77 %) that is preventing biodegradation of degradable part of copolymers.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Environmental Science and Pollution Research",
title = "Biodegradation of polystyrene-graft-starch copolymers in three different types of soil",
volume = "21",
number = "16",
pages = "9877-9886",
doi = "10.1007/s11356-014-2946-0"
}

Nikolić, V., Veličković, S.,& Popović, A. R.. (2014). Biodegradation of polystyrene-graft-starch copolymers in three different types of soil. in Environmental Science and Pollution Research
Springer Heidelberg, Heidelberg., 21(16), 9877-9886.
https://doi.org/10.1007/s11356-014-2946-0

Nikolić V, Veličković S, Popović AR. Biodegradation of polystyrene-graft-starch copolymers in three different types of soil. in Environmental Science and Pollution Research. 2014;21(16):9877-9886.
doi:10.1007/s11356-014-2946-0 .

Nikolić, Vladimir, Veličković, Sava, Popović, Aleksandar R., "Biodegradation of polystyrene-graft-starch copolymers in three different types of soil" in Environmental Science and Pollution Research, 21, no. 16 (2014):9877-9886,
https://doi.org/10.1007/s11356-014-2946-0 . .

TY  - JOUR
AU  - Nikolić, Vladimir
AU  - Veličković, Sava
AU  - Antonović, Dušan G.
AU  - Popović, Aleksandar R.
PY  - 2013
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1425
AB  - In this paper, a biodegradation study of grafted copolymers of cornstarch and polystyrene (PS) and cornstarch and poly(methacrylic acid) in model river water is described. These copolymers were obtained in the presence of different amine activators. The synthesized copolymers and products of degradation were characterized by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). Biodegradation was monitored by mass decrease and the number of microorganisms by the Koch method. Biodegradation of both copolymers advanced with time, the starch-graft-poly(methacrylic acid) copolymers had completely degraded after 21 day, and the starch graft polystyrene had partially degraded (45.8-93.1 % mass loss) after 27 days. The differences in the degree of biodegradation are the consequences of the different structures of the samples, and there was a significant negative correlation between the share of polystyrene in the copolymer and the degree of biodegradation. The grafting degree of PS necessary to prevent biodegradation was 54 %. Based on experimental evidence, the mechanisms of both biodegradation processes are proposed, and influence of degree of starch and synthetic component of copolymers on the degradation of the samples were established.
AB  - U ovom radu proučavana je biodegradacija kalemljenih kopolimera kukuruznog skroba i polistirena i kukuruznog skroba i poli(metakrilne kiseline) u rečnoj vodi. Ovi kopolimeri su sintetisani u prisustvu različitih aminoaktivatora. Sintetisani kopolimeri i produkta biodegradacije su karakterisani FTIR spektroskopijom i SEM mikroskopijom. Biodegradacija je praćena gubitkom mase uzoraka, a broj mikroorganizama Kohovom metodom. Stepen biodegradacije obe vrste kopolimera raste sa vremenom. Kalemljeni polimeri skroba i poli(metakrilne kiseline) potpuno se razgrađuju za 21 dan, dok se polimeri na bazi skroba i polistirena delimično razgrađuju nakon 27 dana (45,8-93,1 % od ukupne mase). Razlike u stepenu biodegradacije su posledica različite strukture uzoraka, a postoji i značajna negativna korelacija između udela polistirena u kopolimeru i stepena biodegradacije. Stepen kalemljenja polistirena (udeo polistirena u kopolimeru) koji sprečava biodegradaciju iznosio je 54 %. Na osnovu eksperimentalnih dokaza, predloženi su mehanizmi oba biodegradaciona procesa i ustanovljeni su uticaji količine skroba i sintetske komponente kopolimera na biodegradaciju.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Biodegradation of starch-graft-polystyrene and starch-graft-poly(methacrylic acid) copolymers in model river water
T1  - Biodegradacija kalemljenih kopolimera skroba i polistirena i skroba i poli(metakrilne kiseline) u rečnoj vodi
VL  - 78
IS  - 9
SP  - 1425
EP  - 1441
DO  - 10.2298/JSC121216051N
ER  - 

@article{
author = "Nikolić, Vladimir and Veličković, Sava and Antonović, Dušan G. and Popović, Aleksandar R.",
year = "2013",
abstract = "In this paper, a biodegradation study of grafted copolymers of cornstarch and polystyrene (PS) and cornstarch and poly(methacrylic acid) in model river water is described. These copolymers were obtained in the presence of different amine activators. The synthesized copolymers and products of degradation were characterized by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). Biodegradation was monitored by mass decrease and the number of microorganisms by the Koch method. Biodegradation of both copolymers advanced with time, the starch-graft-poly(methacrylic acid) copolymers had completely degraded after 21 day, and the starch graft polystyrene had partially degraded (45.8-93.1 % mass loss) after 27 days. The differences in the degree of biodegradation are the consequences of the different structures of the samples, and there was a significant negative correlation between the share of polystyrene in the copolymer and the degree of biodegradation. The grafting degree of PS necessary to prevent biodegradation was 54 %. Based on experimental evidence, the mechanisms of both biodegradation processes are proposed, and influence of degree of starch and synthetic component of copolymers on the degradation of the samples were established., U ovom radu proučavana je biodegradacija kalemljenih kopolimera kukuruznog skroba i polistirena i kukuruznog skroba i poli(metakrilne kiseline) u rečnoj vodi. Ovi kopolimeri su sintetisani u prisustvu različitih aminoaktivatora. Sintetisani kopolimeri i produkta biodegradacije su karakterisani FTIR spektroskopijom i SEM mikroskopijom. Biodegradacija je praćena gubitkom mase uzoraka, a broj mikroorganizama Kohovom metodom. Stepen biodegradacije obe vrste kopolimera raste sa vremenom. Kalemljeni polimeri skroba i poli(metakrilne kiseline) potpuno se razgrađuju za 21 dan, dok se polimeri na bazi skroba i polistirena delimično razgrađuju nakon 27 dana (45,8-93,1 % od ukupne mase). Razlike u stepenu biodegradacije su posledica različite strukture uzoraka, a postoji i značajna negativna korelacija između udela polistirena u kopolimeru i stepena biodegradacije. Stepen kalemljenja polistirena (udeo polistirena u kopolimeru) koji sprečava biodegradaciju iznosio je 54 %. Na osnovu eksperimentalnih dokaza, predloženi su mehanizmi oba biodegradaciona procesa i ustanovljeni su uticaji količine skroba i sintetske komponente kopolimera na biodegradaciju.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Biodegradation of starch-graft-polystyrene and starch-graft-poly(methacrylic acid) copolymers in model river water, Biodegradacija kalemljenih kopolimera skroba i polistirena i skroba i poli(metakrilne kiseline) u rečnoj vodi",
volume = "78",
number = "9",
pages = "1425-1441",
doi = "10.2298/JSC121216051N"
}

Nikolić, V., Veličković, S., Antonović, D. G.,& Popović, A. R.. (2013). Biodegradation of starch-graft-polystyrene and starch-graft-poly(methacrylic acid) copolymers in model river water. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 78(9), 1425-1441.
https://doi.org/10.2298/JSC121216051N

Nikolić V, Veličković S, Antonović DG, Popović AR. Biodegradation of starch-graft-polystyrene and starch-graft-poly(methacrylic acid) copolymers in model river water. in Journal of the Serbian Chemical Society. 2013;78(9):1425-1441.
doi:10.2298/JSC121216051N .

Nikolić, Vladimir, Veličković, Sava, Antonović, Dušan G., Popović, Aleksandar R., "Biodegradation of starch-graft-polystyrene and starch-graft-poly(methacrylic acid) copolymers in model river water" in Journal of the Serbian Chemical Society, 78, no. 9 (2013):1425-1441,
https://doi.org/10.2298/JSC121216051N . .

TY  - JOUR
AU  - Nikolić, Vladimir
AU  - Veličković, Sava
AU  - Popović, Aleksandar R.
PY  - 2012
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1280
AB  - The aim of this work was synthesis of grafted copolymers of poly(methacrylic acid) and starch (PMAA-graft-starch) with high percentage of grafting, G (%). The effect of temperature (55-75 degrees C), concentration of methacrylic acid monomer (0.775-1.452 mol/dm(3)), amount of initiator potassium persulfate (PPS) (0.00075-0.0025 mol), reaction time (30-270 min) and nature and amount (0.001-0.005 mol) of amine activator on percentage of grafting were investigated. The following amine activators were used: N,N-dimethylaminoethanol. N,N-diethylaminoethanol, triethylamine, propylamine, iso-butylamine, pentylamine, hexylamine, 4-(2-hidroxyethyl) morpholine and 1-(2-hidroxyethyl) piperazine. The graft copolymer was characterized by Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy. The highest G was 40.92%. Reaction conditions were as follows: 10.00 g of starch, monomer concentration was 0.775 mol/dm(3), temperature of 70 degrees C, the amount of PPS was 0.001 mol. The 4-(2-hidroxyethyl) morpholine was used as amine activator in amount of 0.001 mol. (C) 2012 Elsevier Ltd. All rights reserved.
PB  - Elsevier Sci Ltd, Oxford
T2  - Carbohydrate Polymers
T1  - Amine activators influence on grafting reaction between methacrylic acid and starch
VL  - 88
IS  - 4
SP  - 1407
EP  - 1413
DO  - 10.1016/j.carbpol.2012.02.027
ER  - 

@article{
author = "Nikolić, Vladimir and Veličković, Sava and Popović, Aleksandar R.",
year = "2012",
abstract = "The aim of this work was synthesis of grafted copolymers of poly(methacrylic acid) and starch (PMAA-graft-starch) with high percentage of grafting, G (%). The effect of temperature (55-75 degrees C), concentration of methacrylic acid monomer (0.775-1.452 mol/dm(3)), amount of initiator potassium persulfate (PPS) (0.00075-0.0025 mol), reaction time (30-270 min) and nature and amount (0.001-0.005 mol) of amine activator on percentage of grafting were investigated. The following amine activators were used: N,N-dimethylaminoethanol. N,N-diethylaminoethanol, triethylamine, propylamine, iso-butylamine, pentylamine, hexylamine, 4-(2-hidroxyethyl) morpholine and 1-(2-hidroxyethyl) piperazine. The graft copolymer was characterized by Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy. The highest G was 40.92%. Reaction conditions were as follows: 10.00 g of starch, monomer concentration was 0.775 mol/dm(3), temperature of 70 degrees C, the amount of PPS was 0.001 mol. The 4-(2-hidroxyethyl) morpholine was used as amine activator in amount of 0.001 mol. (C) 2012 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Carbohydrate Polymers",
title = "Amine activators influence on grafting reaction between methacrylic acid and starch",
volume = "88",
number = "4",
pages = "1407-1413",
doi = "10.1016/j.carbpol.2012.02.027"
}

Nikolić, V., Veličković, S.,& Popović, A. R.. (2012). Amine activators influence on grafting reaction between methacrylic acid and starch. in Carbohydrate Polymers
Elsevier Sci Ltd, Oxford., 88(4), 1407-1413.
https://doi.org/10.1016/j.carbpol.2012.02.027

Nikolić V, Veličković S, Popović AR. Amine activators influence on grafting reaction between methacrylic acid and starch. in Carbohydrate Polymers. 2012;88(4):1407-1413.
doi:10.1016/j.carbpol.2012.02.027 .

Nikolić, Vladimir, Veličković, Sava, Popović, Aleksandar R., "Amine activators influence on grafting reaction between methacrylic acid and starch" in Carbohydrate Polymers, 88, no. 4 (2012):1407-1413,
https://doi.org/10.1016/j.carbpol.2012.02.027 . .