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Characterization of castor oil based polyurethane films prepared with N-methyl-2-pyrrolidinone as a solvent

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dc.contributor.authorMalmonge, J. A.
dc.contributor.authordos Santos, M. A.
dc.contributor.authorMalmonge, L. F.
dc.contributor.authorKanda, DHF
dc.contributor.authorChierice, G. O.
dc.contributor.authorSakamoto, W. K.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInst Fis & Quim Sao Carlos
dc.date.accessioned2014-05-20T13:29:29Z
dc.date.available2014-05-20T13:29:29Z
dc.date.issued2005-10-15
dc.description.abstractMolecular mobility in castor oil based polyurethane was investigated with thermally stimulated depolarization current (TSDC) measurements and alternating-current (ac) dielectric relaxation spectroscopy. Three peaks could be observed in TSDC thermograms from 173 to 373 K. The relaxation located at 213 K could be attributed to the change in the molecular chain due to the interaction between the isocyanate and the solvent, and it was well fitted with the Vogel-Fulcher-Tammann equation. The other two peaks were located at 274 and 365 K and could be attributed to interfacial polarization and space charge, respectively. (c) 2005 Wiley Periodicals, Inc.en
dc.description.affiliationUniv Estadual Paulista, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationInst Fis & Quim Sao Carlos, Dept Quim & Fis Mol, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.format.extent746-749
dc.identifierhttp://dx.doi.org/10.1002/app.22103
dc.identifier.citationJournal of Applied Polymer Science. Hoboken: John Wiley & Sons Inc., v. 98, n. 2, p. 746-749, 2005.
dc.identifier.doi10.1002/app.22103
dc.identifier.issn0021-8995
dc.identifier.lattes1016869974988190
dc.identifier.lattes4802713321439692
dc.identifier.lattes0896348165708140
dc.identifier.urihttp://hdl.handle.net/11449/9959
dc.identifier.wosWOS:000231680500027
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.subjectglass transitionpt
dc.subjectpolyurethanespt
dc.subjectdielectric propertiespt
dc.titleCharacterization of castor oil based polyurethane films prepared with N-methyl-2-pyrrolidinone as a solventen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
dspace.entity.typePublication
unesp.author.lattes1016869974988190
unesp.author.lattes4802713321439692
unesp.author.lattes0896348165708140
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Ilha Solteirapt
unesp.departmentFísica e Química - FEISpt

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Ilha Solteira - FEIS - Faculdade de Engenharia