“…Li et al, 1997, investigated the corrosion-resistance properties of polyaniline-coated mild steel in saline and acid by electrochemical impedance spectroscopy. Recently, PLS nanocomposites used as enhanced anticorrosion coatings have been reported by Yeh group [Yeh et al, 2001[Yeh et al, , 2005Chang et al, 2006Chang et al, , 2007Chang et al, , 2008Lai et al, 2007;. For example, conjugated polymers (e.g., polyaniline, polypyrrole, and poly(3-hexylthiophene)), thermoplastic polymers (e.g., poly(methyl methacrylate), polystyrene, poly(styrene-co-acrylonitrile), polysulfone, and polyacrylate), and thermosetting polymers (e.g., polyimide and epoxy) all had been blended with organo-modified clay or raw Na + −MMT clay through different preparative routes such as in-situ polymerization or solution dispersion, to make a series of novel advanced anticorrosion coatings based on a series of electrochemical corrosion parameter measurements of corrosion potential, polarization resistance and corrosion current at room temperature.…”