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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/25284
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dc.contributor.authorArantes, Tatiane M.-
dc.contributor.authorLeao, Katyuscya V.-
dc.contributor.authorTavares, Maria Ines B.-
dc.contributor.authorFerreira, Antonio Gilberto-
dc.contributor.authorLongo, Elson-
dc.contributor.authorCamargo, Emerson R.-
dc.date.accessioned2014-05-20T14:17:38Z-
dc.date.accessioned2016-10-25T17:40:04Z-
dc.date.available2014-05-20T14:17:38Z-
dc.date.available2016-10-25T17:40:04Z-
dc.date.issued2009-08-01-
dc.identifierhttp://dx.doi.org/10.1016/j.polymertesting.2009.03.011-
dc.identifier.citationPolymer Testing. Oxford: Elsevier B.V., v. 28, n. 5, p. 490-494, 2009.-
dc.identifier.issn0142-9418-
dc.identifier.urihttp://hdl.handle.net/11449/25284-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/25284-
dc.description.abstractThe chemical behavior of styrene-butadiene rubber (SBR) and of the SBR/TiO2 and photodegraded SBR/TiO2 nanocomposites was investigated through nuclear magnetic resonance spectroscopy (NMR) in the solid state with magic angle spinning (MAS). The C-13 cross polarization/magic angle spinning (CP/MAS) routine spectrum allowed us to obtain information on the polymer microstructure and also to evaluate the domain mobilities. The variation contact time and the proton spin-lattice relaxation time in the rotating frame (T,pH) were determinant factors to evaluate the dynamic molecular motion. The NMR spectrum of the nanocomposites was dislocated 5 ppm to higher chemical shift, indicating the presence of a strong interaction between the polymer chains and the TiO2 nanoparticles. The VTC experiment showed a rigid domain in the SBR/TiO2 photodegraded nanocomposite due to cross-linking reactions. (C) 2009 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
dc.format.extent490-494-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectNMRen
dc.subjectCarbon-13 solid stateen
dc.subjectNanocompositesen
dc.subjectPhotodegradationen
dc.titleNMR study of styrene-butadiene rubber (SBR) and TiO2 nanocompositesen
dc.typeoutro-
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)-
dc.contributor.institutionCtr Technol-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), LIEC, UFSCar, BR-13565905 São Carlos, SP, Brazil-
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Lab Ressonancia Magnet Nucl, UFSCar, BR-13565905 São Carlos, SP, Brazil-
dc.description.affiliationCtr Technol, IMA UFRJ, BR-21945970 Rio de Janeiro, Brazil-
dc.description.affiliationSão Paulo State Univ, UNESP, Dept Biochem & Technol Chem, Chem Inst Araraquara,LIEC IQ, BR-14801907 Araraquara, SP, Brazil-
dc.description.affiliationUnespSão Paulo State Univ, UNESP, Dept Biochem & Technol Chem, Chem Inst Araraquara,LIEC IQ, BR-14801907 Araraquara, SP, Brazil-
dc.description.sponsorshipIdCNPq: 555644/2006-5-
dc.identifier.doi10.1016/j.polymertesting.2009.03.011-
dc.identifier.wosWOS:000267727000006-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofPolymer Testing-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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