Polyacrylamide coating was formed on aluminium cathode by in situ electrochemical polymerization at constant potential. The influences of supporting electrolytes, cell potential and monomer concentration on the performance and morphology of the coating have been studied. Coating with thickness up to 10 μm were obtained by polymerization of acrylamide solution containing 0 05 mol/L AlCl 3 for 1 h at potential of 8.0 V. The morphology and structure of the coating have been examined by FTIR. The mechanism of ECP has been discussed briefly.
