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UV initiated oxidation and chemiluminescence from aromatic-aliphatic co-polyesters and polylactic acid

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dc.title UV initiated oxidation and chemiluminescence from aromatic-aliphatic co-polyesters and polylactic acid en
dc.contributor.author Rychlý, Jozef
dc.contributor.author Rychlá, Lyda
dc.contributor.author Stloukal, Petr
dc.contributor.author Koutný, Marek
dc.contributor.author Pekařová, Silvie
dc.contributor.author Verney, Vincent
dc.contributor.author Fiedlerová, Agnesa
dc.relation.ispartof Polymer Degradation and Stability
dc.identifier.issn 0141-3910 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2013
utb.relation.volume 98
utb.relation.issue 12
dc.citation.spage 2556
dc.citation.epage 2563
dc.type article
dc.language.iso en
dc.publisher Elsevier, Ltd. en
dc.identifier.doi 10.1016/j.polymdegradstab.2013.09.016
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0141391013003042
dc.subject Aromatic-aliphatic copolyester en
dc.subject Chemiluminescence en
dc.subject Ecoflex en
dc.subject Photodegradation en
dc.subject Polylactide en
dc.subject Thermogravimetry en
dc.description.abstract The chemiluminescence of UV irradiated aromatic-aliphatic polyesters (Ecoflex and PBAT) and polylactic acid (PLA) was examined in nitrogen and oxygen atmospheres during the non-isothermal temperature runs in the interval from 40 to 250 C and isothermally from 150 to 190 C. The non-isothermal thermogravimetry and FTIR spectroscopy have been used for the characterization of differences in original samples. The temperature maxima of peroxidic peaks in nitrogen scaling their stability were compared and found to be in the order PBAT < Ecoflex < PLA. Their positions on the temperature scale that correlate well with the melting temperature of the respective polymer have been discussed. With prolongation of the UV irradiation period, the intensity of peroxidic peaks increased. On the other hand, the effect of pre-irradiation on non-isothermal runs of chemiluminescence measured in oxygen was not as distinct as for measurements in nitrogen. The deconvolution of the non-isothermal chemiluminescence runs in nitrogen revealed two kinds of peroxides in irradiated samples. © 2013 Elsevier Ltd. All rights reserved. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1003611
utb.identifier.obdid 43870385
utb.identifier.scopus 2-s2.0-84890441628
utb.identifier.wok 000329379800020
utb.identifier.coden PDSTD
utb.source j-scopus
dc.date.accessioned 2014-01-06T13:53:05Z
dc.date.available 2014-01-06T13:53:05Z
utb.contributor.internalauthor Stloukal, Petr
utb.contributor.internalauthor Koutný, Marek
utb.contributor.internalauthor Pekařová, Silvie
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