Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/65202
Type: Artigo de periódico
Title: Electrochemical, electrochromic and photoelectrochemical behavior of a highly soluble polyaniline derivative: Poly(o-methoxyaniline) doped with functionalized organic acids
Author: Gazotti, WA
Faez, R
DePaoli, MA
Abstract: Poly(o-methoxyaniline) was chemically prepared in the presence of hydrochloric, p-toluene-sulfonic, dodecyl-benzene-sulfonic or dodecyl-sulfuric acids. Films of this polymer were prepared by casting and electrochemical, electrochromic and photoelectrochemical properties were studied. Cyclic voltammetry experiments show well-defined redox waves when the pH of the electrolyte is 1.0. Poly(o-methoxyaniline) films present high optical contrast in the visible range, when the potential is changed from the fully reduced to the fully oxidized state, independently of the dopant acid, The film obtained from the polymer doped with p-toluene-sulfonic acid, however, presents the highest contrast. Photoelectrochemical experiments also showed that this material yields photocurrent when irradiated with monochromatic light (330 nm), and that the sign of the photocurrent depends on its oxidation state.
Subject: poly-(o-methoxyaniline)
chemically prepared films
organic acid dopants
photoelectrochemical properties
electrochromic properties
Country: Suíça
Editor: Elsevier Science Sa Lausanne
Rights: fechado
Identifier DOI: 10.1016/S0022-0728(96)04712-2
Date Issue: 1996
Appears in Collections:Unicamp - Artigos e Outros Documentos

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