Ion-exchange and apparent diffusion coefficients within cationic polysulfonium coatings containing ferricyanide

Eniya Listiani Dewi, Hiroko Nakano, Kenichi Oyaizu, Hiroyuki Nishide, Eishun Tsuchida

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7 Citations (Scopus)

Abstract

A cationic polyelectrolyte of various poly(arylenesulfonium salt)s were coated on the surface of glassy carbon electrodes with an incorporated ferricyanide anion from the electrolyte solutions. The apparent diffusion coefficients of Fe(CN)6 3- that are electrostatically bound were determined by chronoamperometry, chronocoulometry and mediated electron transfer from the rotating disk voltammetry. The complex incorporated by the S-cationic polyelectrolyte shows a high diffusion coefficient for the polyelectrolyte of poly(methylsufonio-1,4-phenylenethio-1,4-phenylene trifluoro-methanesulfonate). The diffusion of poly(arylenesulfonio triflate) depended on the ionic exchange of the S-cation which has an alkyl bond and the crystalline structure that influenced the electrostatic motion of the anion within the polyelectrolyte modified electrode.

Original languageEnglish
Pages (from-to)37-47
Number of pages11
JournalJournal of Macromolecular Science - Pure and Applied Chemistry
Volume40 A
Issue number1
DOIs
Publication statusPublished - 2003 Jan

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Keywords

  • Cationic polyelectrolyte
  • Chron-ocoulometry
  • Chronoamperometry
  • Diffusion coefficient
  • Mediated electron transfer
  • Polysulfonium

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

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