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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
22/12/1999 |
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Data da última atualização: |
22/12/1999 |
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Autoria: |
RAPOSO, M.; ZUCOLOTTO, V.; PONTES, R. S.; MATTOSO, L. H. C.; OLIVEIRA JUNIOR, O. N. |
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Afiliação: |
Universidade Nova de Lisboa-Faculdade de Ciencias e Tecnologia; USP-IFSC; EMBRAPA-CNPDIA. |
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Título: |
Kinetics of adsorption of conductive poly(o-methoxyaniline) in sel-assembled films. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, July-Aug. 1996, Snowbird, UT, Estados Unidos. Abstracts... Snowbird: Utah University, 1996. |
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Páginas: |
p.63. |
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Idioma: |
Inglês |
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Notas: |
Ref.P1.171. |
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Conteúdo: |
Poly(o-methoxyaniline) (POMA) has been deposited onto substrates of various kinds in the form of self-assembled films alternated with poly(vinyl sulfonic acid) (PVS). Adsorption of POMA was monitored by ultraviolet-visible spectroscopy as a function of the substrate immersion time. The results for polymeric concentration of 10E-2 M may be explained in terms of a fast, 1st-order-kinetics with characteristic time of approximately 5s, followed by a slower process which is completed within 250-300s. The characteristic time of the first process appears to be independent of the type of substrate or number of layers already deposited. The second, slow process, however, does depend on these parameters as it corresponds to the adsorption allowed by the rearrangement of the polymer molecules adsorbed in the first process. |
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Categoria do assunto: |
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Marc: |
LEADER 01477naa a2200193 a 4500
001 1027123
005 1999-12-22
008 1996 bl uuuu u00u1 u #d
100 1 $aRAPOSO, M.
245 $aKinetics of adsorption of conductive poly(o-methoxyaniline) in sel-assembled films.
260 $c1996
300 $ap.63.
500 $aRef.P1.171.
520 $aPoly(o-methoxyaniline) (POMA) has been deposited onto substrates of various kinds in the form of self-assembled films alternated with poly(vinyl sulfonic acid) (PVS). Adsorption of POMA was monitored by ultraviolet-visible spectroscopy as a function of the substrate immersion time. The results for polymeric concentration of 10E-2 M may be explained in terms of a fast, 1st-order-kinetics with characteristic time of approximately 5s, followed by a slower process which is completed within 250-300s. The characteristic time of the first process appears to be independent of the type of substrate or number of layers already deposited. The second, slow process, however, does depend on these parameters as it corresponds to the adsorption allowed by the rearrangement of the polymer molecules adsorbed in the first process.
700 1 $aZUCOLOTTO, V.
700 1 $aPONTES, R. S.
700 1 $aMATTOSO, L. H. C.
700 1 $aOLIVEIRA JUNIOR, O. N.
773 $tIn: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, July-Aug. 1996, Snowbird, UT, Estados Unidos. Abstracts... Snowbird: Utah University, 1996.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| 3. |  | ARAUJO, M. C. P. de; GOUVÊA, A. C. M. S.; ROSA, J. S.; OIANO-NETO, J.; GODOY, R. L. de O.; PACHECO, S.; GIORI, F. P. Quantificação via CLAE dos teores de vitamina C na casca e na polpa de jambolão (Syzygium cumini Lamarck). In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE QUÍMICA, 32., 2009, Fortaleza. Químicos para uma potência emergente: resumos. São Paulo: Sociedade Brasileira de Química, 2009. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
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