Study of charge transport in blends of natural rubber and poly(o-methoxyaniline) based on a resistor network statistical model

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dc.contributor.authorNagashima, Haroldo Naoyuki [UNESP]
dc.contributor.authorCardoso, L. S. [UNESP]
dc.contributor.authorMalmonge, J. A. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:29:46Z
dc.date.available2014-05-20T13:29:46Z
dc.date.issued2009-11-01
dc.description.abstractA statistical model of a resistor network is proposed to describe the electrical properties, real and imaginary components of ac conductivity, of natural rubber (NR) and poly(o-methoxyaniline) (POMA) blend. It takes into account the polydispersivity of the material as well as intrachain and interchain charge transport processes in the POMA phase and the interfacial processes between conducting islands and the insulating matrix. The model calculates the alternated conductivity of these structures by transfer matrix technique. The conductance between two neighboring sites of the natural rubber was determined by Dyre's Equation. The conductance between sites of the conductive polymer, using the resonance quantum-tunnelling model, is obtained by the equation generalized of Breit-Wigner. The interface conductance between both polymers was determined by means of the combination of these two equations assuming the resistances of them are linked in series. The model reproduced the measured conductivity in NR/POMA films in a large range of frequencies. (C) 2009 Elsevier B.V. All rights reserved.en
dc.description.affiliationSão Paulo State Univ, UNESP, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, UNESP, Dept Quim & Fis, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent2208-2210
dc.identifierhttp://dx.doi.org/10.1016/j.synthmet.2009.08.055
dc.identifier.citationSynthetic Metals. Lausanne: Elsevier B.V. Sa, v. 159, n. 21-22, p. 2208-2210, 2009.
dc.identifier.doi10.1016/j.synthmet.2009.08.055
dc.identifier.issn0379-6779
dc.identifier.lattes0607115205166943
dc.identifier.urihttp://hdl.handle.net/11449/10069
dc.identifier.wosWOS:000273230900017
dc.language.isoeng
dc.publisherElsevier B.V. Sa
dc.relation.ispartofSynthetic Metals
dc.relation.ispartofjcr2.526
dc.relation.ispartofsjr0,672
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectStatistical modelen
dc.subjectResistor networken
dc.subjectAlternating conductivityen
dc.subjectResonance quantum tunnellingen
dc.subjectNatural rubberen
dc.titleStudy of charge transport in blends of natural rubber and poly(o-methoxyaniline) based on a resistor network statistical modelen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V. Sa
unesp.author.lattes0607115205166943
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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Artigos - Física e Química - FEIS