Conductive polymer blends as electrochromic materials

Autor(es)

Gazotti Jr‚ WA ; Casalbore-Miceli‚ G. ; Mitzakoff‚ S. ; Geri‚ A. ; Gallazzi‚ MC ; De Paoli‚ M.A.

• Tipo de documento: Artigo Científico
• Fonte: Electrochimica Acta; v. 44, n. 12, p. 1965-1971, 1999.

Resumo

Conductive polymer blends were prepared mixing conductive and insulating polymers and their electrochemical and electrochromic properties were studied. Depending on the insulator matrix used, these properties are not changed. Blend containing polyacrylonitrile and poly(o-methoxyaniline) doped with p-toluene sulfonic acid presents the same electrochemical and electrochromic behavior as the pure conducting polymer. Other blends studied were those obtained by combining poly(epichlorohydrin-co-ethylene oxide) with poly(o-methoxyaniline) and poly(4,4'-dipentoxy-2,2'-bithiophene). An electrochromic device using these polymer blends and a liquid electrolyte was assembled and presented Delta%T-620 (nm) = 56%. This contrast decreased after 300 double potential steps to 33%. (C) 1999 Elsevier Science Ltd. All rights reserved. (AU)

• Processo FAPESP: 96/09983-0 - Polímeros condutores e reciclagem
• Beneficiário: Marco-Aurelio de Paoli
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 96/06664-0 - Preparação e caracterização da poli (o-metoxi-anilina) dopada com ácidos funcionalizados e sua utilização em aplicações de interesse tecnológico
• Beneficiário: Wilson Antonio Gazotti Júnior
• Modalidade de apoio: Bolsas no Brasil - Doutorado