Polymer acid doped polyaniline is electrochemically stable beyond pH 9

Jacob Tarver, Joung Eun Yoo, T. Joseph Dennes, Jeffrey Schwartz, Yueh Lin Loo

Research output: Contribution to journalArticlepeer-review

123 Scopus citations


We report the pH dependence of the electrochemical redox behavior of polyaniline (PANI) that is template synthesized with poly(2-acrylamido-2-methyl- l-propanesulfonic acid), PAAMPSA. Cyclic voltammetry and spectroelectrochemistry were used to assess the oxidation and protonation states of PANI-PAAMPSA. Stable and reversible pernigraniline-emeraldine-leucoemeraldine transitions extend beyond pH 7. Direct pernigraniline-leucoemeraldine transitions dominate in alkaline conditions; these transitions are stable and reversible between 7 and 10, extending the pH stability of PANI well beyond those previously reported.

Original languageEnglish (US)
Pages (from-to)280-286
Number of pages7
JournalChemistry of Materials
Issue number2
StatePublished - Jan 27 2009

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Chemical Engineering
  • Materials Chemistry


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