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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
01/03/2005 |
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Data da última atualização: |
25/04/2008 |
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Autoria: |
MATTOSO, L. H. C.; ZUCOLOTTO, V.; PATERNO, L. G.; VAN GRIETHUIJSEN, R.; FERREIRA, M.; CAMPANA, S. P.; OLIVEIRA JÚNIOR, O. N. |
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Título: |
Self-assembly films of polyacids and doped poly(o-alkoxyanilines). |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Synthetic Metals, Lausanne, v. 71, p. 2037-2038, 1995. |
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Idioma: |
Inglês |
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Conteúdo: |
The self-assembly (SA) technique has been employed to fabricate ultra-thin fIlms of poly(o-alkoxyanilines) (POAAs) alternated with polyacids. Films were produced from alternated layers of doped poly(o-methoxyaniline) (POMA) and poly(styrene sulfonic acid) (PSS), doped POMA and poly(vinyl sulfonic acid) (PVS), and doped poly(o-ethoxyaniline) (POEA) and carboxymethylcellulose (CMC). The build-up of the multilayer structure was monitored by UV-Vis spectroscopy which showed that the absorbance increases linearly with the number of deposited bi-layers for the three systems. In these SA fllms the polyacid may act as a dopant for the POAA promoting Donnan phenomenon effects. The fllms could be doped and dedoped in a reversible fashion by being immersed fito solutions of different pHs. |
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Palavras-Chave: |
Filme ultra-fino; SA; Técnica de Auto-montagem. |
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Categoria do assunto: |
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Marc: |
LEADER 01428naa a2200229 a 4500
001 1028829
005 2008-04-25
008 1995 bl --- 0-- u #d
100 1 $aMATTOSO, L. H. C.
245 $aSelf-assembly films of polyacids and doped poly(o-alkoxyanilines).
260 $c1995
520 $aThe self-assembly (SA) technique has been employed to fabricate ultra-thin fIlms of poly(o-alkoxyanilines) (POAAs) alternated with polyacids. Films were produced from alternated layers of doped poly(o-methoxyaniline) (POMA) and poly(styrene sulfonic acid) (PSS), doped POMA and poly(vinyl sulfonic acid) (PVS), and doped poly(o-ethoxyaniline) (POEA) and carboxymethylcellulose (CMC). The build-up of the multilayer structure was monitored by UV-Vis spectroscopy which showed that the absorbance increases linearly with the number of deposited bi-layers for the three systems. In these SA fllms the polyacid may act as a dopant for the POAA promoting Donnan phenomenon effects. The fllms could be doped and dedoped in a reversible fashion by being immersed fito solutions of different pHs.
653 $aFilme ultra-fino
653 $aSA
653 $aTécnica de Auto-montagem
700 1 $aZUCOLOTTO, V.
700 1 $aPATERNO, L. G.
700 1 $aVAN GRIETHUIJSEN, R.
700 1 $aFERREIRA, M.
700 1 $aCAMPANA, S. P.
700 1 $aOLIVEIRA JÚNIOR, O. N.
773 $tSynthetic Metals, Lausanne$gv. 71, p. 2037-2038, 1995.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| Registros recuperados : 6 | |
| 5. |  | MATTOSO, L. H. C.; PATERNO, L. G.; CAMPANA, S. P.; CURVELO, A. A. S.; RAPOSO, M.; ZUCOLOTTO, V.; CASTRO, M. V. B.; FERREIRA, M.; OLIVEIRA JUNIOR, O. N. Filmes condutores produzidos por auto-montagem. In: CONGRESSO BRASILEIRO DE POLIMEROS, 3., nov. 1995, Rio de Janeiro, RJ. Anais... Rio de Janeiro: Associacao Brasileira de Polimeros, 1995. p.1259-1262.| Biblioteca(s): Embrapa Instrumentação. |
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| 6. | | MATTOSO, L. H. C.; ZUCOLOTTO, V.; PATERNO, L. G.; VAN GRIETHUIJSEN, R.; FERREIRA, M.; CAMPANA, S. P.; OLIVEIRA JÚNIOR, O. N. Self-assembly films of polyacids and doped poly(o-alkoxyanilines). Synthetic Metals, Lausanne, v. 71, p. 2037-2038, 1995.| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 6 | |
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