ELECTROCHEMICAL POLYMERIZATION OF (N-CREATININYL MALEAMIC ACID) COATED LAYER ON STAINLESS STEEL SURFACE AND STUDY ITS ANTI-CORROSION AND BIOLOGICAL ACTIVITY

Abstract

Electrochemical polymerization of N-Creatininyl maleamic (NCM) acid was carried out on stainless steel plate electrode in a protic medium of monomer aqueous solution using electrochemical oxidation procedure in electrochemical cell. Fourier Transform Infrared FT-IR Spectroscopy has examined the structure of synthesized polymer. The anti-corrosion action of polymer was investigated on stainless steel in 0.2M Hydrochloric acid solution at temperatures range (293-323) K. by electrochemical polarization method. In addition, reinforce the anticorrosion of coating polymer by nanomaterial (TiO2) or (ZnO bulk and nano) by adding these nanomaterials to monomer solution. The results of the experimental study showed that the corrosion current density increases with increasing temperature in the range (293-323) K and the protection efficiency of polymer decrease with temperature increase. Kinetic and thermodynamic of activation parameters Ea, A, ΔH* and ΔS* have been calculated for the corrosion process of S-steel in 0.2M HCl solution in the presence and absence polymeric coating. Furthermore, were studied the effect of the preparing polymer on some strain of bacteria.