Electrochemical synthesis, characterization and corrosion resistance of poly(N-methylanyline) coatings containing chitosa on the surface of mild steel

Corrosion is a significant problem today, both in terms of economic losses and envi-ronmental consequences. The deterioration of metal surfaces due to chemical reactions and environmental influences causes significant losses globally. Significant research is being conducted to delay corrosion. Among the methods developed to increase the durability of steel and its derivatives, polymeric coatings, which provide effective and sustainable corrosion protection, are of particular interest. The electrochemical deposi-tion of conductive polymers onto the surfaces of oxidizable metals is the research area of this study. Polymers obtained by electrochemical polymerization of NMA can ad-here to metal surfaces and form a corrosion-inhibiting layer by providing chemical re-sistance. This study investigates the PNMA synthesis process, the effectiveness of the resulting coatings on mild steel surfaces, and the deposition of chitosan onto the sur-face in conjunction with conductive polymers. This study, which examines the electro-chemical synthesis, characterization, and corrosion resistance of PNMA and chitosan on mild steel electrodes in aqueous acidic environments, offers significant advantages. Electrochemical techniques were used for the synthesis and characterization of the coatings, and the results were evaluated. This study is expected to contribute to the de-velopment and application of corrosion-resistant coatings. The results obtained can be used as an effective method for protecting mild steel surfaces in industrial applications. PNMA was synthesized on mild steel surfaces using electrochemical techniques, in-cluding constant current, constant potential, and cyclic voltammetry, from aqueous acidic NMA solutions with and without chitosan. Modified electrodes were obtained by varying the chitosan, monomer, and electrolyte concentrations, as well as the electro-chemical synthesis parameters. The presence of chitosan in the resulting PNMA-coated electrodes was investigated and characterized by electrochemical techniques. Electro-chemical Impedance Spectroscopy (EIS) and Tafel extrapolation methods were used to evaluate the corrosion activity of the modified electrode. EIS allows the investigation of charge transfer resistances on the metal surface, while Tafel extrapolation was used to determine the kinetics of the anode and cathode reactions and the corrosion rate