Co-polymer of polyaniline (PANI) and poly(3,4-ethylenedioxythiophene) PEDOT films was electrochemically prepared by cyclic voltammetry onto Indium Tin Oxide (ITO) electrode in acetonitrile medium. The resulted co-polymer was highly electroactive and well-adhered polymeric film formation on electrode surface. The electrochemical nature of the co-polymer films was investigated through cyclic voltammetry. The effect of pH on the co-polymer films is discussed. The capacitance behaviour of the films is also studied.

Keywords: 3,4-Ethylenedioxythiophene; Aniline; Electrochemical Polymerization;