Electrochemical Impedance Spectroscopy (EIS) was used to evaluate the performance of two doped polyanilines, PAN, in the emeraldine base form, EB, as protective coatings for carbon steel under immersion in 3.55% NaCl. Coatings A and B consisted of EB doped with
tetracyanoethylene (TCNE) and with p-toluenesulfonic acid (PTSA) respectively. The equivalent circuit ...
Keywords: electrochemical impedance spectroscopy, coatings, conductive polymers, polyaniline, corrosion, sodium chloride, steel.