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Assessment of the interrelation between photooxidation and biodegradation of selected polyesters after artificial weathering

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dc.title Assessment of the interrelation between photooxidation and biodegradation of selected polyesters after artificial weathering en
dc.contributor.author Stloukal, Petr
dc.contributor.author Verney, Vincent
dc.contributor.author Commereuc, Sophie
dc.contributor.author Rychlý, Jozef
dc.contributor.author Matisová-Rychlá, Lyda
dc.contributor.author Piš, Vladimír
dc.contributor.author Koutný, Marek
dc.relation.ispartof Chemosphere
dc.identifier.issn 0045-6535 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2012
utb.relation.volume 88
utb.relation.issue 10
dc.citation.spage 1214
dc.citation.epage 1219
dc.type article
dc.language.iso en
dc.publisher Elsevier, Ltd. en
dc.identifier.doi 10.1016/j.chemosphere.2012.03.072
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0045653512004407
dc.subject aromatic-aliphatic copolyester en
dc.subject biodegradation en
dc.subject ecoflex en
dc.subject PBAT en
dc.subject photooxidation en
dc.subject polylactic acid en
dc.description.abstract Three commercially available biodegradable polymers, two different aromatic-aliphatic copolyesters and polylactic acid, intended for the fabrication of agricultural mulching films, in addition to other applications, were subjected to a series of tests with the aim of studying the relationship between their photooxidation and biodegradation. Photooxidation resulted in the rearrangement of polymeric chains, in the case of both copolyesters the events led to polymeric chain crosslinking and the formation of insoluble polymeric gel. The tendency was significantly more pronounced for the copolyester with the higher content of the aromatic constituent. As regards polylactic acid photochemical reactions were not accompanied by crosslinking but instead provoked chain scissions. A biodegradation experiment showed that, despite marked structural changes, the extent of photooxidation was not the decisive factor, which significantly modified the rate of biodegradation in all three materials investigated. The specific surface area of the sample specimens was shown to be more important. © 2012 Elsevier Ltd. en
utb.faculty Faculty of Technology
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1002884
utb.identifier.rivid RIV/70883521:28110/12:43867999!RIV13-MSM-28110___
utb.identifier.rivid RIV/70883521:28610/12:43867999!RIV13-MSM-28610___
utb.identifier.obdid 43868090
utb.identifier.scopus 2-s2.0-84862678914
utb.identifier.wok 000307143800011
utb.identifier.coden CMSHA
utb.source j-scopus
dc.date.accessioned 2012-07-11T11:41:50Z
dc.date.available 2012-07-11T11:41:50Z
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Stloukal, Petr
utb.contributor.internalauthor Piš, Vladimír
utb.contributor.internalauthor Koutný, Marek
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