Study on Anticorrosion Behavior of Poly(N-vinylimidazole-co-methoxyethyl methacrylate) Based Coating in the Aggressive Chloride Ion Environment

摘要

The imidazole supported copolymer coatings on mild steel are well-advised to hinder the attack of corrosive elements against corrosion as indefinitely effective, it is characterized by FTIR, ~1H NMR and ~(13)C NMR spectroscopy techniques and also thermogravimetric analysis (TGA) and differen- tial scanning calorimetry (DSC). The molecular weight and polydispersity indices are ascertained by using Gel permeation chromatography (GPC). The resistance of corrosion performance of poly(N-vinylimidazole-co-Methoxyethyl methacrylate) has been acquired by using DC polarization and AC impedance techniques in 3% NaCl solution. This study has been evidently achieved var- ious corrosion protection efficiency with change in composition of the copolymers. As can be the result proves, the copolymer coated mild steel in 3% NaCl come down the rate of metal attack. The polymer coated substrate has examined via scanning electron microscope (SEM) and atomic force microscope (AFM) which confirms a very thin film onto the metal surface with excellent anticorrosion effects.