Alternating current impedance measurement coating

Significant corrosion inhibition of polyaniline-coated mild steel exposed to saline (3.59 NaCl) and acidic (0.1 N HCl) environments was reported by Thompson et al. [19]. These polyaniline coatings seemed to promote corrosion protection even where scratches existed in the protective coating. But no reliable quantitative characterization was provided in this report, and only a qualitative explanation was made from electrochemical alternating current impedance measurements or direct current linear polarization experiments. Several other conducting polymers including poly(3-hexylthiophene), poly(3-octylthiophene), poly(3-thienylmethylacetate)... 

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