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dc.contributor.authorFernandes, D. M.
dc.contributor.authorHechenleitner, AAW
dc.contributor.authorJob, A. E.
dc.contributor.authorRadovanocic, E.
dc.contributor.authorPineda, EAG
dc.date.accessioned2014-05-20T15:30:14Z
dc.date.available2014-05-20T15:30:14Z
dc.date.issued2006-05-01
dc.identifierhttp://dx.doi.org/10.1016/j.polymdegradstab.2005.05.024
dc.identifier.citationPolymer Degradation and Stability. Oxford: Elsevier B.V., v. 91, n. 5, p. 1192-1201, 2006.
dc.identifier.issn0141-3910
dc.identifier.urihttp://hdl.handle.net/11449/39669
dc.description.abstractA kraft lignin derivative (KLD) obtained by reaction with p-aminobenzoic acid/phthalic anhydride was blended with poly(vinyl alcohol) (PVA) by solution casting from DMSO. PVA and PVA/KLD films were exposed to ultraviolet radiation (24, 48, and 96 h) and analyzed by thermogravimetry (TG), differential scanning calorimetry (DSC), infrared spectroscopy (FTIR), hydrogen nuclear magnetic resonance (H-1 NMR) spectroscopy, and scanning electron microscopy (SEM). PVA films show a loss of thermal stability due to irradiation. PVA/KLD reveals greater thermal stability than PVA and an increase in thermal stability after irradiation. These results suggest that the incorporation of KLD into PVA provides a gain in thermal and photochemical stability. FTIR, H-1 NMR, DSC, and TG results obtained for the blends suggest that intermolecular interactions between PVA and KLD chains are present. SEM micrographs revealed blend miscibility for a KLD blend content of up to 15 wt%, as observed at magnification of 1000 times. (c) 2005 Elsevier Ltd. All rights reserved.en
dc.format.extent1192-1201
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofPolymer Degradation and Stability
dc.sourceWeb of Science
dc.subjectkraft lignin derivativept
dc.subjectpoly(vinyl alcohol)pt
dc.subjectblendspt
dc.subjectNMRpt
dc.subjectFTIRpt
dc.subjectSEMpt
dc.titleThermal and photochemical stability of poly(vinyl alcohol)/modified lignin blendsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationUniv Estadual Maringa, Dept Quim, BR-87020900 Maringa, Parana, Brazil
dc.description.affiliationUNESP, Fac Ciências & Tecnol, BR-19060080 Presidente Prudente, SP, Brazil
dc.description.affiliationUnespUNESP, Fac Ciências & Tecnol, BR-19060080 Presidente Prudente, SP, Brazil
dc.identifier.doi10.1016/j.polymdegradstab.2005.05.024
dc.identifier.wosWOS:000236076400023
dc.rights.accessRightsAcesso restrito
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências e Tecnologia, Presidente Prudentept
dc.identifier.lattes6475585105456744
unesp.author.lattes6475585105456744[3]
unesp.author.orcid0000-0002-4435-2660[1]
unesp.author.orcid0000-0002-1979-8257[3]
dc.relation.ispartofjcr3.193
dc.relation.ispartofsjr1,041
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