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Poly(styrene sulphonic acid)‐doped polyaniline as an inhibitor for the corrosion of mild steel in hydrochloric acid

R. Manickavasagam, K. Jeya Karthik, M. Paramasivam, S. Venkatakrishna Iyer

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 1 February 2002

1054

Abstract

Poly(styrenesulphonic acid)‐doped polyaniline has been synthesised and the influence of this polymeric compound on the inhibition of corrosion of mild steel in 1M HCl has been investigated using weight loss measurements, galvanostatic polarisation studies, electropermeation studies and a.c. impedance measurements. The polymer acts predominantly as an anodic inhibitor. Hydrogen permeation studies and a.c. impedance measurements clearly indicate a very effective performance of the compound as a corrosion inhibitor. The adsorption of the compound on the mild steel surface obeys Temkin's adsorption isotherm.

Citation

Manickavasagam, R., Jeya Karthik, K., Paramasivam, M. and Venkatakrishna Iyer, S. (2002), "Poly(styrene sulphonic acid)‐doped polyaniline as an inhibitor for the corrosion of mild steel in hydrochloric acid", Anti-Corrosion Methods and Materials, Vol. 49 No. 1, pp. 19-26. https://doi.org/10.1108/00035590210413566

Publisher

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MCB UP Ltd

Copyright © 2002, MCB UP Limited

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