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Degradation behaviour of PLA-based polyesterurethanes under abiotic and biotic environments

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dc.title Degradation behaviour of PLA-based polyesterurethanes under abiotic and biotic environments en
dc.contributor.author Kucharczyk, Pavel
dc.contributor.author Pavelková, Alena
dc.contributor.author Stloukal, Petr
dc.contributor.author Sedlařík, Vladimír
dc.relation.ispartof Polymer Degradation and Stability
dc.identifier.issn 0141-3910 OCLC, Ulrich, Sherpa/RoMEO, JCR
dc.date.issued 2016
utb.relation.volume 129
dc.citation.spage 222
dc.citation.epage 230
dc.type article
dc.language.iso en
dc.publisher Elsevier Science, Ltd.
dc.identifier.doi 10.1016/j.polymdegradstab.2016.04.019
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0141391016301276
dc.subject Biodegradation en
dc.subject Hydrolysis en
dc.subject Polylactide en
dc.subject Polyurethanes en
dc.subject Thermal decomposition en
dc.description.abstract Study was conducted on the degradation of polyurethanes based on Poly(lactic acid)/Poly(ethylene glycol), containing three differing concentrations of di-isocyanate compound, under three conditions (hydrolytic, thermal and composting). In the hydrolysis study, the effect of temperature and time were studied by techniques including weighting and GPC. Thermal decomposition was examined by thermogravimetry and mass spectroscopy. Composting was performed under standardized conditions and the amount of CO2 was measured. It was found that hydrolysis of the material started almost immediately after exposure to a water environment at both investigated temperatures (37°C and 55°C), whereas weight loss exhibited a certain delay. Thermal decomposition of the studied materials started below 230°C and lactide was identified as the main product. A biodegradation experiment showed that all the investigated samples successfully (>80%) mineralized within 90 days under composting conditions. © 2016 Elsevier Ltd. All rights reserved. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1006372
utb.identifier.obdid 43875168
utb.identifier.scopus 2-s2.0-84966393587
utb.identifier.wok 000379372200024
utb.identifier.coden PDSTD
utb.source j-scopus
dc.date.accessioned 2016-07-26T14:58:21Z
dc.date.available 2016-07-26T14:58:21Z
dc.description.sponsorship LO1504, MEYS, Ministry of Education, Youth and Sports
dc.description.sponsorship Ministry of Education, Youth and Sports of the Czech Republic, under the NPU I programme [LO1504]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Kucharczyk, Pavel
utb.contributor.internalauthor Pavelková, Alena
utb.contributor.internalauthor Stloukal, Petr
utb.contributor.internalauthor Sedlařík, Vladimír
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