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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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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