Špírková, Milena

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  • Špírková, Milena (4)
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Author's Bibliography

Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites

Pergal, Marija V.; Brkljačić, Jelena; Tovilović-Kovačević, Gordana; Špírková, Milena; Kodranov, Igor D.; Manojlović, Dragan D.; Ostojić, Sanja; Knežević, Nikola Ž.

(2021)

TY  - JOUR
AU  - Pergal, Marija V.
AU  - Brkljačić, Jelena
AU  - Tovilović-Kovačević, Gordana
AU  - Špírková, Milena
AU  - Kodranov, Igor D.
AU  - Manojlović, Dragan D.
AU  - Ostojić, Sanja
AU  - Knežević, Nikola Ž.
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4293
AB  - Novel polyurethane nanocomposite (PUN) materials containing different surface-functionalized mesoporous silica nanoparticles (MSNs) were prepared by in situ polymerization methodology. Polyurethane network was formed from poly(dimethylsiloxane)-based macrodiol (PDMS), 4,4′-methylenediphenyldiisocyanate (MDI), and hyperbranched polyester of the second pseudo-generation (BH-20; used as crosslinking agent). PU and PU/MSN nanocomposites contained equal ratios of soft PDMS and hard MDI-BH-20 segments. Non-functionalized and surface-functionalized (with 3-(trihydroxysilyl)propyl methylphosphonate (FOMSN) and 2-[methoxy(polyethyleneoxy)6−9propyl]trimethoxysilane (PEGMSN)) MSNs were used as the nanofillers at a concentration of 1 wt%. Prepared materials were characterized by Fourier transform infrared (FTIR) spectroscopy, atomic force microscopy (AFM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanical thermal analyses (DMTA), nanoindentation, equilibrium swelling and water absorption measurements. Characteristics of the prepared PUNs when in contact with a biological environment were assessed through testing their biocompatibility, protein adsorption and adhesion of endothelial cells. The favourable influence of MSNs on the physico-chemical and biological characteristics of these novel PUN materials was identified, which evidences their vast applicability potential as coatings for medical devices and implants.
T2  - Progress in Organic Coatings
T1  - Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites
VL  - 151
SP  - 106049
DO  - 10.1016/j.porgcoat.2020.106049
ER  - 
@article{
author = "Pergal, Marija V. and Brkljačić, Jelena and Tovilović-Kovačević, Gordana and Špírková, Milena and Kodranov, Igor D. and Manojlović, Dragan D. and Ostojić, Sanja and Knežević, Nikola Ž.",
year = "2021",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/4293",
abstract = "Novel polyurethane nanocomposite (PUN) materials containing different surface-functionalized mesoporous silica nanoparticles (MSNs) were prepared by in situ polymerization methodology. Polyurethane network was formed from poly(dimethylsiloxane)-based macrodiol (PDMS), 4,4′-methylenediphenyldiisocyanate (MDI), and hyperbranched polyester of the second pseudo-generation (BH-20; used as crosslinking agent). PU and PU/MSN nanocomposites contained equal ratios of soft PDMS and hard MDI-BH-20 segments. Non-functionalized and surface-functionalized (with 3-(trihydroxysilyl)propyl methylphosphonate (FOMSN) and 2-[methoxy(polyethyleneoxy)6−9propyl]trimethoxysilane (PEGMSN)) MSNs were used as the nanofillers at a concentration of 1 wt%. Prepared materials were characterized by Fourier transform infrared (FTIR) spectroscopy, atomic force microscopy (AFM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanical thermal analyses (DMTA), nanoindentation, equilibrium swelling and water absorption measurements. Characteristics of the prepared PUNs when in contact with a biological environment were assessed through testing their biocompatibility, protein adsorption and adhesion of endothelial cells. The favourable influence of MSNs on the physico-chemical and biological characteristics of these novel PUN materials was identified, which evidences their vast applicability potential as coatings for medical devices and implants.",
journal = "Progress in Organic Coatings",
title = "Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites",
volume = "151",
pages = "106049",
doi = "10.1016/j.porgcoat.2020.106049"
}
Pergal, M. V., Brkljačić, J., Tovilović-Kovačević, G., Špírková, M., Kodranov, I. D., Manojlović, D. D., Ostojić, S.,& Knežević, N. Ž. (2021). Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites.
Progress in Organic Coatings, 151, 106049.
https://doi.org/10.1016/j.porgcoat.2020.106049
Pergal MV, Brkljačić J, Tovilović-Kovačević G, Špírková M, Kodranov ID, Manojlović DD, Ostojić S, Knežević NŽ. Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites. Progress in Organic Coatings. 2021;151:106049
Pergal Marija V., Brkljačić Jelena, Tovilović-Kovačević Gordana, Špírková Milena, Kodranov Igor D., Manojlović Dragan D., Ostojić Sanja, Knežević Nikola Ž., "Effect of mesoporous silica nanoparticles on the properties of polyurethane network composites" 151 (2021):106049,
https://doi.org/10.1016/j.porgcoat.2020.106049 .

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

Stefanović, Ivan S.; Špírková, Milena; Poreba, Rafal; Steinhart, Miloš; Ostojić, Sanja B.; Tešević, Vele; Pergal, Marija V.

(Amer Chemical Soc, Washington, 2016)

TY  - BOOK
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  - http://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
ER  - 
@book{
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",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/3618",
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"
}
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.
Industrial and Engineering Chemistry ResearchAmer Chemical Soc, Washington..
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. Industrial and Engineering Chemistry Research. 2016;
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" (2016)

Impact of the poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly-(propylene oxide) macrodiols on the surface-related properties of polyurethane copolymers

Stefanović, Ivan S.; Gođevac, Dejan; Špírková, Milena; Jovančić, Petar; Tešević, Vele; Milačić, Vesna; Pergal, Marija V.

(Assoc Chemical Engineers Serbia, Belgrade, 2016)

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  - http://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",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/2379",
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.
Hemijska industrijaAssoc 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. Hemijska industrija. 2016;70(6):725-738
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" 70, no. 6 (2016):725-738,
https://doi.org/10.2298/HEMIND151127009S .
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Study of the Properties of Urethane-Siloxane Copolymers Based on Poly(propylene oxide)-b-poly(dimethylsiloxane)-b-poly(propylene oxide) Soft Segments

Stefanović, Ivan S.; Špírková, Milena; Poreba, Rafal; Steinhart, Miloš; Ostojić, Sanja B.; Tešević, Vele; Pergal, Marija V.

(Amer Chemical Soc, Washington, 2016)

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  - http://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",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/1918",
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.
Industrial and Engineering Chemistry ResearchAmer 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. Industrial and Engineering Chemistry Research. 2016;55(14):3960-3973
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" 55, no. 14 (2016):3960-3973,
https://doi.org/10.1021/acs.iecr.5b04975 .
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