Electrochromism and conductivity of sulfonated polyaniline films in propylene carbonate

Authors

  • Daiane Fossatti Departamento de Química, Universidade Federal do Paraná, C. P. 19081, 81531-990 Curitiba, PR, Brazil
  • Wilson Jose da Silva Departamento de Física, Universidade Tecnológica Federal do Paraná, CPGEI Av. 7 de setembro 3165, 80230-901 Curitiba, PR, Brazil
  • Regina Maria Queiroz de Mello Departamento de Química, Universidade Federal do Paraná, C. P. 19081, 81531-990 Curitiba, PR, Brazil

DOI:

https://doi.org/10.13171/mjc.1.4.2011.29.12.16

Abstract

In this work we compare the spectroelectrochemical response of electrochemically deposited sulfonated polyaniline and polyaniline films. The electrochromic performance of SPAN is slightly superior to that of PANI, showing faster coloring and bleaching and slightly higher electrochromic efficiency than PANI. Furthermore, submitting SPAN to successive voltammetry scans in LiClO4/propylene carbonate constitutes a simple method to improve SPAN conductivity by a factor 20.

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Published

2011-12-29

Issue

Vol. 1 No. 4 (2011)

Section

Electrochemistry

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