Biodegradation of a polylactic acid/polyvinyl chloride blend in soil

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dc.contributor.authorSantana, V. T. [UNESP]
dc.contributor.authorGoncalves, S. P. C. [UNESP]
dc.contributor.authorAgnelli, J. A. M.
dc.contributor.authorMartins-Franchetti, S. M. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2013-09-30T18:47:29Z
dc.date.accessioned2014-05-20T13:56:25Z
dc.date.available2013-09-30T18:47:29Z
dc.date.available2014-05-20T13:56:25Z
dc.date.issued2012-07-05
dc.description.abstractThis study investigated the microbial action in soil on poly(L-lactic acid) (PLLA) and polyvinyl chloride (PVC) films and a PLLA/PVC 7 : 3 blend, using Fourier transform infrared spectroscopy (FTIR), contact angle and scanning electron microscopy (SEM). The films (50 mu m) were obtained from the evaporation of dichloromethane solutions and buried in soil columns, in controlled conditions, for 120 days. The results showed that the surface of the PLLA films and blend became 18 and 31% more hydrophilic, respectively. The morphology of the films also changed after 120 days of microbial treatment, particularly that of the PLLA phase in the blend, confirmed by structural and conformational changes in the FTIR CO region at 12001000 cm1 and an increase in the relative intensity of the band at 1773 cm1, which was attributed to C O group vibration due to a rotational isomer in the interlamellar region (semi-ordered region). Besides the biotreated PVC presented changes in the C-Cl band at 738 cm1, due to the presence of some PVC conformational isomer. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012en
dc.description.affiliationUNESP São Paulo State Univ, Dept Biochem & Microbiol, Rio Claro, SP, Brazil
dc.description.affiliationUFSCar Fed Univ São Carlos, Dept Mat Engn, São Carlos, SP, Brazil
dc.description.affiliationUnespUNESP São Paulo State Univ, Dept Biochem & Microbiol, Rio Claro, SP, Brazil
dc.format.extent536-540
dc.identifierhttp://dx.doi.org/10.1002/app.35685
dc.identifier.citationJournal of Applied Polymer Science. Malden: Wiley-blackwell, v. 125, n. 1, p. 536-540, 2012.
dc.identifier.doi10.1002/app.35685
dc.identifier.issn0021-8995
dc.identifier.urihttp://hdl.handle.net/11449/20167
dc.identifier.wosWOS:000302349700063
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Applied Polymer Science
dc.relation.ispartofjcr1.901
dc.relation.ispartofsjr0,543
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectPLLAen
dc.subjectPVCen
dc.subjectFTIRen
dc.subjectbiodeteriorationen
dc.subjectcontact angleen
dc.titleBiodegradation of a polylactic acid/polyvinyl chloride blend in soilen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Bioquímica e Microbiologia - IBRC