Raja Kumar, P. and Kalpana, D. and Renganathan, N.G. and Pitchumani, S. (2008) Potentiodynamic deposition of poly (o-anisidine-co-metanilic acid)on mild steel and its application as corrosion inhibitor. Electrochimica Acta, 54 (2). pp. 442-447.

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Abstract

For the first time, poly (o-anisidine-co-metanilic acid) (PASM) was deposited on mild steel substrate by electrochemical polymerization of o-anisidine and metanilic acid monomers in aqueous solution of 0.1M H2SO4. The electrochemical polymerization of o-anisidine takes place in the presence of metanilic acid monomer and uniform, strongly adherent coating was obtained on the substrate. The electroactivity of copolymerwas studied by cyclic voltammetry and AC impedance techniques. There is an increasing anodic current due to oxidation of metanilic acid monomer at the surface of the electrode when the applied potential is cycled from −0.2V to 0.8 V. These deposits were characterized by Fourier transform infrared (FTIR) spectroscopy, UV–vis and TG/DTA techniques. The effect of various concentrations of PASM copolymer solution in acid rain corrosive media has been studied through potentiodynamic polarization, AC impedance and I–E curvemethods. The soluble form of polymeric solution provided better anti-corrosive behavior in artificial acid rain solution.

Item Type:	Article
Uncontrolled Keywords:	Conducting polymer; Poly (o-anisidine-co-metanilic acid); Potentiodynamic; Cyclic voltammetry; Corrosion inhibition
Subjects:	Corrosion Science and Engineering Electrochemical Power Sources
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	16 Jan 2012 16:10
Last Modified:	16 Jan 2012 16:10
URI:	http://cecri.csircentral.net/id/eprint/101

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