Zeta potential and doping in polyaniline dispersions

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dc.contributor.authorDe Medeiros, D. W.O.
dc.contributor.authorDos Santos, D. S.
dc.contributor.authorDantas, T. N.C.
dc.contributor.authorPereira, M. R.
dc.contributor.authorGiacometti, J. A. [UNESP]
dc.contributor.authorFonseca, J. L.C.
dc.contributor.institutionLagoaNova
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-29T08:47:19Z
dc.date.available2022-04-29T08:47:19Z
dc.date.issued2003-12-01
dc.description.abstractPolyaniline (PAni) has been classified as an intractable polymer, particularly in its conducting form, the emeraldine salt (ES). Therefore one can consider the mixture of water and PAni as a suspension. The conducting form of PAni can be obtained by a doping process known as acid doping, in which a strong acid turns PAni from its insulating form, the emeraldine base (EB), into the conducting form, the emeraldine salt. With the objective of establishing a correlation between the doping level and the zeta potential of polyaniline dispersions, polyaniline + HCl aqueous suspensions were prepared. Positive zeta potential values for the various suspensions of PAni showed that it acquired positive charges after the doping process. It was also observed an increase in zeta potential values as HC1 concentration increased, which could be correlated to UV-visible spectra of PAni suspensions.en
dc.description.affiliationDepartamento de Quimica Universidade Federal do Rio Grande do Norte LagoaNova, C. P. 1662, Natal, RN 59078-970
dc.description.affiliationGrupo de Polimeros Prof. Bernhard Gross Institute de Fisica de Säo Carlos Universidade de São Paulo, C. P. 369, São Carlos, SP 13560-970
dc.description.affiliationFaculdade de Ciências e Tecnologia de Présidente Prudente Universidade Estadual Paulista, C. P. 467, Presidente Prudente, SP 19060-900
dc.description.affiliationUnespFaculdade de Ciências e Tecnologia de Présidente Prudente Universidade Estadual Paulista, C. P. 467, Presidente Prudente, SP 19060-900
dc.format.extent251-257
dc.identifier.citationMaterials Science- Poland, v. 21, n. 2, p. 251-257, 2003.
dc.identifier.issn0137-1339
dc.identifier.scopus2-s2.0-12144253248
dc.identifier.urihttp://hdl.handle.net/11449/231750
dc.language.isoeng
dc.relation.ispartofMaterials Science- Poland
dc.sourceScopus
dc.subjectDoping
dc.subjectElectrophoretic mobility
dc.subjectPolyaniline
dc.subjectZeta potential
dc.titleZeta potential and doping in polyaniline dispersionsen
dc.typeArtigo

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Artigos - Física, Química e Biologia - FCT