Conductive nanocomposites based on cellulose nanofibrils coated with polyaniline-DBSA via in situ polymerization

dc.contributor.authorSilva, Michael J. [UNESP]
dc.contributor.authorSanches, Alex O. [UNESP]
dc.contributor.authorMalmonge, Luiz F. [UNESP]
dc.contributor.authorMedeiros, Eliton S.
dc.contributor.authorRosa, Morsyleide F.
dc.contributor.authorMcMahan, Colleen M.
dc.contributor.authorMalmonge, José A. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUSDA-ARS
dc.date.accessioned2014-05-27T11:26:57Z
dc.date.available2014-05-27T11:26:57Z
dc.date.issued2012-09-01
dc.description.abstractCellulose nanofibrils (CNF) were extracted by acid hydrolysis from cotton microfibrils and nanocomposites with polyaniline doped with dodecyl benzenesulphonic acid (PANI-DBSA) were obtained by in situ polymerization of aniline onto CNF. The ratios between DBSA to aniline and aniline to oxidant were varied in situ and the nanocomposites characterized by four probe DC electrical conductivity, ultraviolet-visible-near infrared (UV-Vis - NIR) and Fourier-transform infrared (FTIR) spectroscopies and X-ray diffraction (XRD). FTIR and UV-Vis/NIR characterization confirmed the polymerization of PANI onto CNF surfaces. Electrical conductivity of about 10 -1 S/cm was achieved for the composites; conductivity was mostly independent of DBSA/aniline (between 2 and 4) and aniline/oxidant (between 1 and 5) molar ratios. X-ray patterns of the samples showed crystalline peaks characteristic of cellulose I for CNF samples, and a mixture of both characteristic peaks of PANI and CNF for the nanocomposites. Field emission scanning electron microscopy (FESEM) characterization corroborated the abovementioned results showing that PANI coated the surface of the nanofibrils. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.description.affiliationUNESP - Univ. Estadual Paulista Faculdade de Engenharia Departamento de Física e Química, São Paulo
dc.description.affiliationDepartamento de Engenharia de Materiais Universidade Federal da Paraíba, João Pessoa - Pb
dc.description.affiliationEmbrapa Agroindústria Tropical, Fortaleza, CE
dc.description.affiliationWestern Regional Research Center USDA-ARS, Albany, CA 94710
dc.description.affiliationUnespUNESP - Univ. Estadual Paulista Faculdade de Engenharia Departamento de Física e Química, São Paulo
dc.format.extent196-202
dc.identifierhttp://dx.doi.org/10.1002/masy.201100156
dc.identifier.citationMacromolecular Symposia, v. 319, n. 1, p. 196-202, 2012.
dc.identifier.doi10.1002/masy.201100156
dc.identifier.issn1022-1360
dc.identifier.issn1521-3900
dc.identifier.scopus2-s2.0-84867809591
dc.identifier.urihttp://hdl.handle.net/11449/73524
dc.language.isoeng
dc.relation.ispartofMacromolecular Symposia
dc.relation.ispartofsjr0,235
dc.relation.ispartofsjr0,235
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectcellulose nanofibrils
dc.subjectnanocomposite
dc.subjectpolyaniline
dc.subjectAcid hydrolysis
dc.subjectCellulose nanofibrils
dc.subjectCharacteristic peaks
dc.subjectCrystalline peaks
dc.subjectDC electrical conductivity
dc.subjectElectrical conductivity
dc.subjectField emission scanning electron microscopy
dc.subjectFour-probe
dc.subjectFTIR
dc.subjectIn-situ
dc.subjectIn-situ polymerization
dc.subjectMicro-fibrils
dc.subjectMolar ratio
dc.subjectNano-fibrils
dc.subjectX-ray patterns
dc.subjectAniline
dc.subjectCellulose
dc.subjectElectric conductivity
dc.subjectField emission microscopes
dc.subjectFourier transform infrared spectroscopy
dc.subjectInfrared devices
dc.subjectPolyaniline
dc.subjectPolymerization
dc.subjectX ray diffraction
dc.subjectNanocomposites
dc.titleConductive nanocomposites based on cellulose nanofibrils coated with polyaniline-DBSA via in situ polymerizationen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteirapt

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