Poly(o-toluidine) polymer as electrochromic material

Poly(o-toluidine) (POT) polymer films have been synthesized by electrochemical polymerization technique. These polymeric films show the multiple optical transitions on switching the potential between reduced and oxidized states. The presence of methyl group affects not only the polymerization reaction but also the potential window which suggests its suitability for designing an electrochromic device. The electrochromic effect of POT films in different protonic acids, at different pH and at various applied potentials have been reported in this paper.