Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/66119
Type: Artigo de periódico
Title: New functionalized 3-(alkyl)thiophene derivatives and spectroelectrochemical characterization of its polymers
Author: Ribeiro, AS
Gazotti, WA
dos Santos, PF
De Paoli, MA
Abstract: Three novel 3-[omega-(p-methoxyphenoxy)alkyllthiophene monomers were synthesized and electrochemically polymerized on ITO electrodes by potentiodynamic or potentiostatic methods. Potentiostatic deposition provided films with better stabilities and had smaller quantities of soluble oligomers formed during polymerization. We also observed that derivatives with shorter alkyl chains in the substituted thiophene are difficult to polymerize by electrochemical methods. Spectroelectrochemical characterization of the polymer films obtained showed that their colors depend on the alkyl chain length in the substituted monomer. This demonstrates that the electrochromic behavior of these polymers can be tailored by means of the chemical synthesis of the monomers. The electrochromic properties presented by these new polymers motivate their future application in electrochromic devices. (C) 2004 Elsevier B.V. All rights reserved.
Subject: substituted polythiophene
electropolymerization
spectroelectrochemistry
Country: Suíça
Editor: Elsevier Science Sa
Rights: fechado
Identifier DOI: 10.1016/j.synthmet.2004.04.005
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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