Water-soluble conducting poly(aniline) polymer

Abstract

Water-soluble conducting poly(aniline propane sulphonic acid) and its sodium salt have been synthesized by derivatization of polyaniline; multiple and reversible colour changes were observed for polymer films on indium–tin oxide coated glass dipped in a LiClO₄/acetonitrile solution between –0.4 and 1.2 V vs. Ag/AgCl, and for aqueous polymer solutions between pH 1 and 10.