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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
05/04/2005 |
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Data da última atualização: |
24/11/2009 |
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Autoria: |
JOB, A. E.; CONSTANTINO, C. J. L.; MENDES, T. S. G.; TERUYA, M. Y.; ALVES, N.; MATTOSO, L. H. C. |
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Título: |
Effect of natural rubber latex on the conducting state of polyaniline blends determined by Raman spectroscopy. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Journal of Raman spectroscopy, v. 34, p. 831-836, 2003. |
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Idioma: |
Inglês |
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Conteúdo: |
Blends possessing lhe elastomeric properties of natural rubber (NR) and the conducting properties of conducting polymer (polyaniline, PANI) were obtained, which are promising for further application in deformation sensors. Blends containing 20% (v/v) of PANI in 80% of NR latex were fabricated by casting in the form of free-standing films and treated either with H Cl or with carona discharge, which lead P ANI to its conducting state (doping process). Characterlzation was carried out by Raman spectroscopy, d.c. conductivity and thermogravimetric analysis. Evidence for chemical interaction between PANI and NR was observed, which allowed lhe conclusion that lhe NR latex itself is able partially to induce both the primary doping of PANI (by protonation) and lhe secondary doping of PANI (by changing the chain conformation). Further improvement in the primary doping could be obtained for lhe blends either by carona discharge or by exposing them to HCI. The electrical conductivity reached in lhe blends was dependent on the doping conditions used, as observed by Raman scattering. |
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Palavras-Chave: |
Borracha Natural; Condutividade; doping; Polianilina. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01748naa a2200229 a 4500
001 1028909
005 2009-11-24
008 2003 bl --- 0-- u #d
100 1 $aJOB, A. E.
245 $aEffect of natural rubber latex on the conducting state of polyaniline blends determined by Raman spectroscopy.
260 $c2003
520 $aBlends possessing lhe elastomeric properties of natural rubber (NR) and the conducting properties of conducting polymer (polyaniline, PANI) were obtained, which are promising for further application in deformation sensors. Blends containing 20% (v/v) of PANI in 80% of NR latex were fabricated by casting in the form of free-standing films and treated either with H Cl or with carona discharge, which lead P ANI to its conducting state (doping process). Characterlzation was carried out by Raman spectroscopy, d.c. conductivity and thermogravimetric analysis. Evidence for chemical interaction between PANI and NR was observed, which allowed lhe conclusion that lhe NR latex itself is able partially to induce both the primary doping of PANI (by protonation) and lhe secondary doping of PANI (by changing the chain conformation). Further improvement in the primary doping could be obtained for lhe blends either by carona discharge or by exposing them to HCI. The electrical conductivity reached in lhe blends was dependent on the doping conditions used, as observed by Raman scattering.
653 $aBorracha Natural
653 $aCondutividade
653 $adoping
653 $aPolianilina
700 1 $aCONSTANTINO, C. J. L.
700 1 $aMENDES, T. S. G.
700 1 $aTERUYA, M. Y.
700 1 $aALVES, N.
700 1 $aMATTOSO, L. H. C.
773 $tJournal of Raman spectroscopy$gv. 34, p. 831-836, 2003.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| Registros recuperados : 21 | |
| 1. |  | NASCENTE, A. S.; DAMBIRO, J.; CONSTANTINO, C. Effects of grain-producing cover crops on rice grain yield in Cabo Delgado, Mozambique. Revista Ceres, Viçosa, MG, v. 64, n. 6, p. 607-615, nov./dez. 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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| 6. | | PATERNO, L. G.; CONSTANTINO, C. L.; OLIVEIRA JUNIOR, O. N.; MATTOSO, L. H. C. Self-assembled films of polyanilines complexed with polyions. In: INTERNATIONAL CONFERENCE ON ORGANIZED MOLECULAR FILMS, 9., 2000, Potsdam. Programme and abstracts? Golm: Max Planck Institute of Colloids and Interfaces; Potsdam: University Potsdam, 2000. v. 1, p. 226, ref. T 163.| Biblioteca(s): Embrapa Instrumentação. |
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| 9. | | CAMILO, E. C.; CONSTANTINO, C. J. L.; TERUYA, M. Y.; ALVES, N.; MATTOSO, L. H. C.; JOB, A. E. Dependence of the electrical conductivity and elastomeric properties on sample preparation of blends of polyaniline and natural rubber. Journal of Applied Polymer Science, New York, v. 97, p. 1498-1503, 2005.| Biblioteca(s): Embrapa Instrumentação. |
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| 10. | | JOB, A. E.; CONSTANTINO, C. J. L.; MENDES, T. S. G.; TERUYA, M. Y.; ALVES, N.; MATTOSO, L. H. C. Polyaniline and natural rubber blends: effect of rubber inducing doping on the conducting polymer. In: MATTOSO, L. H. C.; LEÃO, A.; FROLLINI, E. (Ed.). Natural polymers and compósites IV. [São Carlos: EMBRAPA: USP; S.l.: UNESP, 2002]. 5 f. 1 CD-ROM.| Biblioteca(s): Embrapa Instrumentação. |
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| 15. | | FONSECA, R. D.; CORREA, D. S.; PARIS, E. C.; TRIBUZI, V. DEV, A. VOSS, T. AOKI, P. H. B. CONSTANTINO, C. J. L. MENDONCA, C. R. Fabrication of zinc oxide nanowires/polymer composites by two-photon polymerization. Journal of Polymer Science. Part B, Polymer Physics, Nova York, v. 52, p. 333-337, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| 16. | | FERREIRA, M.; CONSTANTINO, C. J. L.; RIUL JR. A.; WOHNRATH, K.; AROCA, R. F.; GIACOMETTI, J. A.; OLIVEIRA JR. O. N.; MATTOSO, L. H. C. Preparation, characterization and taste sensing properties of Langmuir-Blodgett Films from mixtures of polyaniline and rutheniu complex. Polymer, Guildford, v. 44, p. 4205-4211, 2003.| Biblioteca(s): Embrapa Instrumentação. |
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| 17. | | GOMES, R. da C.; CONSTANTINO, C.; FERNANDES JR, F.; KORITIAKI, N. A.; NIWA, M. V. G.; MARCONATO, M. N.; CASTRO, F. A. B.; RIBEIRO, E. L. A. Relationships among internal fat depots and subcutaneous fat in sheep. Journal of Animal Science v.90, (Supplement 3/J); Journal of Dairy Science, v.95, (Supplement 2), p.382, 2012. Edição dos trabalhos do: ADSA-PSA-AMPA-ASAS-CSAS-WSASAS JOINT ANNUAL MEETING, 2012, Phoenix-AR. Small Ruminant: Production.T370.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 18. | | LEITE, F. L.; SIMOES, M. L.; OLIVEIRA NETO, M.; NASCENTE, P. A. P.; CONSTANTINO, C. J. L.; MATTOSO, L. H. C.; OLIVEIRA JUNIOR, O. N. A nanocarrier charge model for the transport in poly(o-alkoxyanilines). In: ENCONTRO DA SBPMAT, 10.; BRAZILIAN MRS MEETING, 10., 2011, Gramado. Resumos... Rio de Janeiro: SBPMat, 2011. não paginado.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 19. | | OLIVEIRA, F. A.; ALVES, N.; GIACOMETTI, J. A.; CONSTANTINO, C. J. L.; MATTOSO, L. H. C.; BALAN, A. M. O. A.; JOB, A. E. Study of the thermomechanical and electrical properties of conducting composites containing natural rubber and carbon black. Journal of applied polymer science, [s. l.], v. 106, n. 2, p. 1001-1006, 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Instrumentação. |
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| 20. | | CONSTANTINO, C. J. L.; RIUL JR. A.; VENANCIO, E. C.; CONSOLIN, N.; ANTUNES, P. A.; FONSECA, F. J.; OLIVEIRA JR. O. N.; AROCA, R. F.; MATTOSO, L. H. C. Detection limit for artifical sensors based on ultrathin films of perylene derivatives. In: INTENATIONAL SYMPOSIUM ON OLFACTION AND ELECTRONIC NOISE, 9., 2002, Rome. ISOEN' 02: book of abstracts. p. 158.| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 21 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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