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Type: Artigo de periódico
Title: Structural and electrochromic study of polypyrrole synthesized with azo and anthraquinone dyes
Author: Ferreira, J
Santos, MJL
Matos, R
Ferreira, OP
Rubira, AF
Girotto, EM
Abstract: The electrochromic properties of polypyrrole (PPy) synthesized with two different dyes, Remazol Black B (RB) and Dianix Red (DR), have been investigated concerning the influence of dye molecules on polymer structure ordering and electrochromic characteristics. The polymers have been electrochemically prepared. Structural characterization by X-ray diffraction (XRD) and Raman spectroscopy has shown the improvement of PPy chain ordering by dye molecules, which provides an easy mass transport at the interface, a better electronic charge transfer in the bulk, and resulting better electrochromic properties. (c) 2006 Elsevier B.V. All rights reserved.
Subject: polypyrrole
azo dye
anthraquinone dye
transport properties
electrochromic properties
Country: Suíça
Editor: Elsevier Science Sa
Citation: Journal Of Electroanalytical Chemistry. Elsevier Science Sa, v. 591, n. 1, n. 27, n. 32, 2006.
Rights: fechado
Identifier DOI: 10.1016/j.jelechem.2006.03.016
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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