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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: |
22/12/1999 |
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Data da última atualização: |
22/12/1999 |
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Autoria: |
MANTOVANI, G. L.; MATTOSO, L. H. C. |
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Afiliação: |
UFSCar-DEMa; EMBRAPA-CNPDIA. |
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Título: |
Conductive rubbery polyaniline blends. |
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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.41. |
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Idioma: |
Inglês |
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Notas: |
Ref.P1.103. |
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Conteúdo: |
Electrical conductivity is highly desirable for employing thermoplastic rubbers-TR - in applications such as paints for corrosion protection and adhesives for conductive materials. We have succeeded in producing, from solution, conducting elastomeric blends of a TR, poly(styrene-ethylene/butylene-styrene) triblock copolymer, and polyaniline. Flexible, free-standing lustrous films obtained by casting polyaniline doped with camphor sulfonic acid were studied by ultraviolet-visible spectroscopy, conductivity measurements, cyclic voltammetry, thermogravimetric analysis, differential scanning calorimetry, dynamic mechanical thermal analysis, X-rays diffraction and electron scanning microscopy. Remarkably, they posses low percolation threshold reaching electrical conductivities up to 5S/cm for blends containing only 2.5% of the conducting polymer. The thermal analysis demonstrated that these blends exhibit no weigh loss up to temperatures as high as 250 Celsius degrees. Also, they present electrochemical activity similar to polyaniline. |
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Palavras-Chave: |
Blends; Conductive rubbery; Polyaniline. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01648naa a2200193 a 4500
001 1027098
005 1999-12-22
008 1996 bl uuuu u00u1 u #d
100 1 $aMANTOVANI, G. L.
245 $aConductive rubbery polyaniline blends.
260 $c1996
300 $ap.41.
500 $aRef.P1.103.
520 $aElectrical conductivity is highly desirable for employing thermoplastic rubbers-TR - in applications such as paints for corrosion protection and adhesives for conductive materials. We have succeeded in producing, from solution, conducting elastomeric blends of a TR, poly(styrene-ethylene/butylene-styrene) triblock copolymer, and polyaniline. Flexible, free-standing lustrous films obtained by casting polyaniline doped with camphor sulfonic acid were studied by ultraviolet-visible spectroscopy, conductivity measurements, cyclic voltammetry, thermogravimetric analysis, differential scanning calorimetry, dynamic mechanical thermal analysis, X-rays diffraction and electron scanning microscopy. Remarkably, they posses low percolation threshold reaching electrical conductivities up to 5S/cm for blends containing only 2.5% of the conducting polymer. The thermal analysis demonstrated that these blends exhibit no weigh loss up to temperatures as high as 250 Celsius degrees. Also, they present electrochemical activity similar to polyaniline.
653 $aBlends
653 $aConductive rubbery
653 $aPolyaniline
700 1 $aMATTOSO, L. H. C.
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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Embrapa Instrumentação (CNPDIA) |
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