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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
30/03/2005 |
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Data da última atualização: |
30/03/2005 |
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Autoria: |
PIZA, M. A.; CONSTANTINO, C. J. L.; VENANCIO, E. C.; MATTOSO, L. H. C. |
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Título: |
Interaction mechanism of poly (o-ethoxyaniline) and collagen blends. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Polymer, v. 44, p. 5663-5670, 2004. |
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Idioma: |
Inglês |
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Conteúdo: |
Blend films of poly (o-ethoxyaniline) (POEA) and collagen were fabricated by casting under optimized conditions and characterized by Raman scattering and UV - vis absorption spectroscopies. The UV - vis spectra showed that the addition of collagen in the aqueous solution of POEA promotes a dedoping of the POEA. This effect was also observed for the blend films as supported by Raman scattering and a mechanism for the chemical interaction between POEA-collagen is proposed. The influences of different percentage of collagen as well as the pH of stock solutions during the fabrication process of the blend films were also investigated. It was found that the preparation method plays an important role in the flexibility and freestanding properties of the films. Complementary, the surface morphology was studied by atomic force microscopy and the conductivity by dc measurements.
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Palavras-Chave: |
Blend; Conduction polymer. |
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Thesaurus Nal: |
collagen. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01392naa a2200193 a 4500
001 1028844
005 2005-03-30
008 2004 bl --- 0-- u #d
100 1 $aPIZA, M. A.
245 $aInteraction mechanism of poly (o-ethoxyaniline) and collagen blends.
260 $c2004
520 $aBlend films of poly (o-ethoxyaniline) (POEA) and collagen were fabricated by casting under optimized conditions and characterized by Raman scattering and UV - vis absorption spectroscopies. The UV - vis spectra showed that the addition of collagen in the aqueous solution of POEA promotes a dedoping of the POEA. This effect was also observed for the blend films as supported by Raman scattering and a mechanism for the chemical interaction between POEA-collagen is proposed. The influences of different percentage of collagen as well as the pH of stock solutions during the fabrication process of the blend films were also investigated. It was found that the preparation method plays an important role in the flexibility and freestanding properties of the films. Complementary, the surface morphology was studied by atomic force microscopy and the conductivity by dc measurements.
650 $acollagen
653 $aBlend
653 $aConduction polymer
700 1 $aCONSTANTINO, C. J. L.
700 1 $aVENANCIO, E. C.
700 1 $aMATTOSO, L. H. C.
773 $tPolymer$gv. 44, p. 5663-5670, 2004.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| Registros recuperados : 17 | |
| 1. |  | PIZA, M. A.; COLNAGO, L. A.; MATTOSO, L. H. C. Morphology of blends of collagen and poly (o-ethoxyaniline). Acta Microscopica, Maracaibo, v. 10, p. 106-111. abr 2001. Supplement 1. Proceedings of The First Latin American Symposium on Scanning Microscopy, São Pedro, SP, april, 2001.| Biblioteca(s): Embrapa Instrumentação. |
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| 3. | | PIZA, M. A.; HERRMANN, P. S. P.; MATTOSO, L. H. C.; COLNAGO, L. A. Characterization of collagen films by optical, electron and atomic force microscopies. In: INTERNATIONAL SYMPOSIUM ON NATURAL POLYMERS AND COMPOSITES-ISNaPol, 2., 1998, Atibaia. Proceedings... Brasília: EMBRAPA-SPI, 1998. p. 195-198. Editores: Luiz Henrique Capparelli Mattoso, Elisabete Frollini, Alcides Leão.| Biblioteca(s): Embrapa Instrumentação. |
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| 5. | | PIZA, M. A.; PATERNO, L. G.; COLNAGO, L. A.; MATTOSO, L. H. C. Characterization of electrically conductive blends of collagen and poly (o-ethoxyaniline) by AFM and SEM. In: CONGRESSO BRASILEIRO DE MICROSCOPIA DE MATERIAIS - MICROMAT, 7., 2000, São Pedro, SP. MICROMAT 2000: abstracts... São Carlos: [UFSCar], 2000. p. 5, ref. RE001-007.| Biblioteca(s): Embrapa Instrumentação. |
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| 7. | | LEITE, L. S. F.; PIZA, M. A.; MOREIRA, F. K. V.; MATTOSO, L. H. C. Preparação e caracterização de bionanocompósitos à base de gelatina e nanocristais de celulose por casting contínuo. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 9., 2017, São Carlos. Anais ... São Carlos: Embrapa Instrumentação, 2017. p. 209-2112. Editores: Caue Ribeiro de Oliveira, Elaine Cristina Paris, Luiz Henrique Capparelli Mattoso, Marcelo Porto Bemquerer, Maria Alice Martins, Odílio Benedito Garrido de Assis.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 8. | | PIZA, M. A.; PATERNO, L. G.; MATTOSO, L. H. C.; COLNAGO, L. A. Preparação e caracterização de blendas de colágeno e poli(o-etoxianilina) (POEA). In: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 2., 1998, São Carlos. Anais do II SIAGRO. São Carlos: Embrapa Instrumentação Agropecuária, 2000. p. 221-227. Editores: Paulo Estevão Cruvinel, Luiz Alberto Colnago, André Torre-Neto.| Biblioteca(s): Embrapa Instrumentação. |
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| 9. | | PIZA, M. A.; PATERNO, L. G.; MATTOSO, L. H. C.; COLNAGO, L. A. Preparação e caracterização de filmes de colágeno e poli(o-etoxianilina) (POEA). In: SIMPÓSIO INTERUNIDADES DE CIÊNCIA E ENGENHARIA DE MATERIAIS-SICEM 98, 1., 1998, São Carlos, SP. Programa e resumos... São Carlos, SP : CETEPE, 1998. p. 25-26.| Biblioteca(s): Embrapa Instrumentação. |
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| 13. | | PATERNO, L. G.; FERREIRA, F. C.; CONSOLIN FILHO, N.; PIZA, M. A.; MATTOSO, L. H. C. Using the self-assembly technique for natural polymers systems. In: INTERNATIONAL SYMPOSIUM ON NATURAL POLYMERS AND COMPOSITES-ISNaPol/2000, 3.; WORKSHOP ON PROGRESS IN PRODUCTION AND PROCESSING OF CELLULOSIC FIBRES AND NATURAL POLYMERS, 2000, São Pedro. Natural polymers and composites. São Carlos: Embrapa Instrumentação Agropecuária: USP-IQSC; Botucatu: UNESP, 2000. p. 22-26. Editors: Luiz Henrique Capparelli Mattoso, Alcides Leão, Elisabete Frollini.| Biblioteca(s): Embrapa Instrumentação. |
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| 15. | | PIZA, M. A.; COLNAGO, L. A.; MATTOSO, L. H. C.; PATERNO, L. G.; VARELA, H.; TORRESI, R. M. Characterization of electrochemically active blends of collagen and poly(o-ethoxyaniline). In: INTERNATIONAL SYMPOSIUM ON NATURAL POLYMERS AND COMPOSITES-ISNaPol/2000, 3.; WORKSHOP ON PROGRESS IN PRODUCTION AND PROCESSING OF CELLULOSIC FIBRES AND NATURAL POLYMERS, 2000, São Pedro. Natural polymers and composites. São Carlos: Embrapa Instrumentação Agropecuária: USP-IQSC; Botucatu: UNESP, 2000. p. 310-314. Editors: Luiz Henrique Capparelli Mattoso, Alcides Leão, Elisabete Frollini.| Biblioteca(s): Embrapa Instrumentação. |
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| 16. | | PIZA, M. A.; PATERNO, L. G.; VARELA, H.; TORRESI, R. M.; SOUZA, E. A. M.; COLNAGO, L. A.; MATTOSO, L. H. C. Characterization of blends of collgen and poly(o-ethoxyaniline). In: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, July 2000, Austria. Book of abstracts. Austria: Elsevier, 2000. p.128, ref. WedA161.| Biblioteca(s): Embrapa Instrumentação. |
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| 17. | | MATTOSO, L. H. C.; FERREIRA, F. C.; HERRMANN, P. S. P.; MARTIN, A. R.; PEREIRA-DA-SILVA, M. A.; PATERNO, L. G.; PIZA, M. A.; CURVELO, A. A. S.; COLNAGO, L. A.; DENES, F. Atomic force microscopy as a tool for the evaluation of natural fibers and polymers surface. In: INTERNATIONAL CONFERENCE ON WOODFIBER-PLASTIC COMPOSITES, 5., 1999, Madison: Forest Products Society, 1999. p.43-56.| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 17 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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