The electrochemical synthesis of poly(aniline-co-o-anisidine) on copper and their corrosion performances

摘要: The copolymer films PANI-co-POA and poly(aniline-co-o-anisidine) were carried out on copper (Cu) electrode, by applying two different scan rates (20 50 mV s−1) using thicknesses at high rate. Synthesizes achieved under cyclic voltammetric conditions from 0.075 M aniline o-anisidine containing sodium oxalate solutions. synthesized strongly adherent homogeneous in both cases. AC impedance spectroscopy (EIS), anodic polarization plots open circuit potential–time curves used to evaluate the corrosion performance of coated uncoated electrodes 3.5% NaCl. It was shown that film low rate exhibited a better property initially when compared with produced However, it could not resist attack products, longer time meanwhile its barrier significantly diminished. found thin catalysing effect led formation highly protective oxides surface whereby providing protection for long exposure times. also emerged resistances almost same relatively higher much periods one observed bare electrode.