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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: |
RIUL JUNIOR, A.; OLIVEIRA JUNIOR, O. N.; TELLES, G. D.; MATTOSO, L. H. C.; FARIA, R. M. |
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Afiliação: |
USP-IFSC; EMBRAPA-CNPDIA. |
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Título: |
Characterization of Langmuir-Blodgett films of parent polyaniline. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON ORGANIZED MOLECULAR FILMS, 7., Sept. 1995, Numana, Ancona, Italia. Abstract book... [S.l.: s.n.], 1995. |
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Páginas: |
p.33. |
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Idioma: |
Inglês |
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Notas: |
Ref.P-1.99. |
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Conteúdo: |
Langmuir-Blodgett (LB) films from parent polyaniline (PAni) were characterized using UV-vis spectroscopy, cyclic voltammetry, surface potential and conductivity measurements. PAni was mde soluble in chloroform by being doped with organic acids. Optimized conditions for the formation of high collapse pressures Langmuir films and for the subsequent transfer onto solid substrates were only achieved after a systematic processability study. Monolayers were spread onto pH=2 subphases and transferred onto glass substrates in the form of Z-type LB films. The optical and electroactive properties of the films were essentially the same as those obtained with spin-coated PAni films. The absorbance of the polaronic peak increases linearly with the number of deposited layers. |
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Palavras-Chave: |
Filmes; Langmuir-Blodgett; Polianilina. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01466naa a2200229 a 4500
001 1026949
005 1999-12-22
008 1995 bl uuuu u00u1 u #d
100 1 $aRIUL JUNIOR, A.
245 $aCharacterization of Langmuir-Blodgett films of parent polyaniline.
260 $c1995
300 $ap.33.
500 $aRef.P-1.99.
520 $aLangmuir-Blodgett (LB) films from parent polyaniline (PAni) were characterized using UV-vis spectroscopy, cyclic voltammetry, surface potential and conductivity measurements. PAni was mde soluble in chloroform by being doped with organic acids. Optimized conditions for the formation of high collapse pressures Langmuir films and for the subsequent transfer onto solid substrates were only achieved after a systematic processability study. Monolayers were spread onto pH=2 subphases and transferred onto glass substrates in the form of Z-type LB films. The optical and electroactive properties of the films were essentially the same as those obtained with spin-coated PAni films. The absorbance of the polaronic peak increases linearly with the number of deposited layers.
653 $aFilmes
653 $aLangmuir-Blodgett
653 $aPolianilina
700 1 $aOLIVEIRA JUNIOR, O. N.
700 1 $aTELLES, G. D.
700 1 $aMATTOSO, L. H. C.
700 1 $aFARIA, R. M.
773 $tIn: INTERNATIONAL CONFERENCE ON ORGANIZED MOLECULAR FILMS, 7., Sept. 1995, Numana, Ancona, Italia. Abstract book... [S.l.: s.n.], 1995.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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