Electrochemical synthesis and characterization of conducting copolymer: Poly(o-aniline-co-o-toluidine)

Copolymerization of o-anisidine and o-toluidine was achieved electrochemically in aqueous solution containing H2SO4 as supporting electrolyte. The copolymer compositions were altered by varying the monomer feed ratios during electrosynthesis. The films were obtained by electropolymerization in solution containing monomers in various ratio (0.025–0.1 M) and 1 M sulphuric acid as electrolyte. The films were obtained by applying sequential linear potential scan rate 50 mV/s between − 0.2 to 1.0 V. versus Ag/AgCl electrode. These copolymers were characterized by cyclic voltammetry, conductivity measurement, UV-visible and FT-IR spectroscopy, differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA).