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Poly(4‐vinylpyridine) and poly(4‐vinylpyridine poly‐3‐oxide ethylene) as corrosion inhibitors for Cu60‐Zn40 in 0.5M HNO3

Y. Abed (Laboratoire de Chimie des Eaux et Corrosion, Faculté des Sciences, Oujda, Morocco.)
Z. Arrar (Institut de Chimie USTL, Université de Tlemcen, Tlemcen, Algeria.)
B. Hammouti (Laboratoire de Chimie des Eaux et Corrosion, Faculté des Sciences, Oujda, Morocco.)
M. Taleb (Departement de Chimie, Faculté des Sciences, DEM, Fès, Morocco.)
S. Kertit (Laboratoire de Physico‐Chimie des Matériaux associés à l’AUPELF UREF (LAF 509), Ecole Normale Supérieure de Takaddoum, Rabat, Morocco.)
A. Mansri (Institut de Chimie USTL, Université de Tlemcen, Tlemcen, Algeria.)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 1 October 2001

493

Abstract

The effects of the addition of poly(4‐vinylpyridine) (P4VP) and its derivative poly(4‐vinylpyridine poly‐3‐oxide ethylene) (P4VPPOE) on the corrosion of Cu60‐Zn40 in 0.5M HNO3 have been investigated by potentiodynamic and weight loss measurements. Both of the studied polymers decrease the corrosion rate. Their inhibition efficiency (E%) increases with the concentration. The maximum of inhibition was obtained for P4VPPOE (100 per cent at 10–5M). E% obtained from cathodic Tafel plots and weight loss methods were in good agreement. The inhibitors were adsorbed on the Cu60‐Zn40 surface according to the Frumkin adsorption isotherm model. P4VPPOE acts as a cathodic inhibitor and its efficiency is temperature independent.

Keywords

Citation

Abed, Y., Arrar, Z., Hammouti, B., Taleb, M., Kertit, S. and Mansri, A. (2001), "Poly(4‐vinylpyridine) and poly(4‐vinylpyridine poly‐3‐oxide ethylene) as corrosion inhibitors for Cu60‐Zn40 in 0.5M HNO3", Anti-Corrosion Methods and Materials, Vol. 48 No. 5, pp. 304-308. https://doi.org/10.1108/EUM0000000005882

Publisher

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MCB UP Ltd

Copyright © 2001, MCB UP Limited

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