A. Chetouani, K. Medjahed, K. E. Benabadji
Jun 1, 2003
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0
Influential Citations
58
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Journal
Progress in Organic Coatings
Abstract
The effect of poly(4-vinylpyridine isopentyl bromide) (P4VPIPBr) in three degrees of quaternisation (6, 18 and 79%) on the corrosion of pure iron in molar sulphuric acid is investigated by potentiodynamic, polarisation resistance and weight loss measurements. The inhibition efficiency ( E%) of P4VPIPBr increases with its concentration to attain ∼100% around 5 × 10 −6 M. E% values obtained from the various methods are in good agreement. Polarisation measurements show also that the compound acts as a cathodic inhibitor and adsorbs on the pure iron surface according to the Frumkin adsorption isotherm model. © 2003 Elsevier Science B.V. All rights reserved.