Degradation behaviour of PCL/PEO/PCL and PCL/PEO block copolymers under controlled hydrolytic, enzymatic and composting conditions
Само за регистроване кориснике
2017
Аутори
Ponjavic, MarijanaNikolić, Marija S.
Nikodinović-Runić, Jasmina
Jeremić, Sanja
Stevanovic, Sanja
Djonlagic, Jasna
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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 molecu...lar 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.
Кључне речи:
Hydrolytical degradation / Enzymatic degradation / Pseudomonas aeruginosa PAO1 / Biocomposting / PCL/PEO block copolymers / AFM / FTIRИзвор:
Polymer Testing, 2017, 57, 67-77Издавач:
- Elsevier Sci Ltd, Oxford
Финансирање / пројекти:
- Синтеза и карактеризација нових функционалних полимера и полимерних нанокомпозита (RS-172062)
- Изучавање микробиолошког диверзитета и карактеризација корисних срединских микроорганизама (RS-173048)
DOI: 10.1016/j.polymertesting.2016.11.018
ISSN: 0142-9418
WoS: 000393018800011
Scopus: 2-s2.0-84995587937
Колекције
Институција/група
Inovacioni centar / Innovation CentreTY - 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 . .