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Carbodiimide additive to control hydrolytic stability and biodegradability of PLA

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dc.title Carbodiimide additive to control hydrolytic stability and biodegradability of PLA en
dc.contributor.author Stloukal, Petr
dc.contributor.author Jandíková, Gabriela
dc.contributor.author Koutný, Marek
dc.contributor.author Sedlařík, Vladimír
dc.relation.ispartof Polymer Testing
dc.identifier.issn 0142-9418 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2016
utb.relation.volume 54
dc.citation.spage 19
dc.citation.epage 28
dc.type article
dc.language.iso en
dc.publisher Elsevier
dc.identifier.doi 10.1016/j.polymertesting.2016.06.007
dc.relation.uri https://www.sciencedirect.com/science/article/pii/S0142941816302446
dc.subject Anti-hydrolysis agent en
dc.subject Biodegradation en
dc.subject Carbodiimides en
dc.subject Hydrolysis en
dc.subject Polylactide en
dc.description.abstract Enhanced durability of bio-based polylactic acid (PLA) is one of the prerequisites to be a considered as alternative to petroleum-based polymers in long time application. The effect of bis(2,6-diisopropylphenyl)carbodiimide (BDICDI) additive in various concentration on the extent of hydrolytic stabilization and subsequent degradation kinetics of PLA was studied in the process of abiotic hydrolysis and microbial decomposition under composting conditions. The study showed that BDICDI acts as an efficient stabilizer suppressing the hydrolytic scission of ester bonds of PLA in both degradation processes tested, especially at concentrations above 1.5% w/w. Within the stabilization period which strongly depends on concentrations of BDICDI, suppression of hydrolytic degradation also triggered preservation of thermal and mechanical properties. After the period of stabilization as the dose of stabilizer is depleted, probably via reaction with water molecules and carboxylic groups, the material was hydrolyzed at a comparable or even slightly higher rate than pure PLA. By applying the appropriate amount of BDICDI, the approximate duration of stabilization could be set to suit the desired requirements of the final product. © 2016 Elsevier Ltd en
utb.faculty University Institute
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1006523
utb.identifier.obdid 43875196
utb.identifier.scopus 2-s2.0-84976462977
utb.identifier.wok 000382798300004
utb.identifier.coden POTED
utb.source j-scopus
dc.date.accessioned 2016-08-09T14:02:46Z
dc.date.available 2016-08-09T14:02:46Z
dc.description.sponsorship 15-08287Y, GACR, Czech Science Foundation
dc.description.sponsorship Czech Science Foundation [15-08287Y]; Ministry of Education, Youth and Sports of the Czech Republic [LO1504]; Internal Grant Agency of the Tomas Bata University in Zlin [IGA/CPS/2016/004]
dc.rights Attribution-NonCommercial-NoDerivs 4.0 International
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.access openAccess
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Stloukal, Petr
utb.contributor.internalauthor Jandíková, Gabriela
utb.contributor.internalauthor Koutný, Marek
utb.contributor.internalauthor Sedlařík, Vladimír
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