Surface properties and inhibition behavior of ester-containing gemini surfactants on the corrosion rate of mild steel

In the present study, a novel gemini surfactant namely dodecyl betainate geminis (BET) ischaracterized and then investigated as a corrosion inhibitor for mild steel in 2 M HClsolution. Physicochemical properties such as the critical micelle concentration and interfacialproperties were determined using surface tension and cyclic voltammetry (CV)measurements. The corrosion inhibition efficiency was studied through electrochemicalmethods like electrochemical impedance spectroscopy (EIS), potentiodynamic polarizationand weight loss methods. The interest in this surfactant stems from their potential as greencompound. The main objective is to improve the rate of biodegradation which has a greatimportance for development of the new surfactants [1-3].