Electrochemical Properties of Poly (2-Mercaptobenzimidazole) Films Prepared in Methanol Alkaline Solvent on Copper-Zinc Alloy

Science Direct Working Paper No S1574-0331(04)70339-2

12 Pages Posted: 31 May 2017 Last revised: 16 Dec 2017

See all articles by ASSOULI Badr

ASSOULI Badr

Laboratoire d’Electrochimie et des Etudes de Corrosion

Z.A. Ait Chikh

Laboratoire d’Electrochimie et des Etudes de Corrosion

H. Idrissi

Laboratoire de Physico-chimie industrielle, INSA

A. Srhiri

Laboratoire d’Electrochimie et des Etudes de Corrosion

Date Written: September 2000

Abstract

The kinetic of electropolymerization of the 2-mercaptobenzimidazole (2-MBI) on Brass substrate in methanol alkaline solution was investigated using cyclic polarization, chronoamperometry and electrochemical impedance techniques. The polymeric film was prepared by successive cycling potential of Cu-Zn electrode between 0.2V and 2.4V. At the second cycling, the oxidation peak of monomer disappears indicating the formation of insulating film. We have also shown that monomer oxidation reaction is essentially irreversible and controlled by a diffusion process. The protective effect of the film formed on brass, has been studied in 3% NaCl solution. The results showed an important inhibition efficiency was very high in the order of 96% for 4h of testing time.

Keywords: 2-mercaptobenzimidazole, electropolymerization, isolating film, inhibition of corrosion, NaCl 3%

Suggested Citation

Badr, ASSOULI and Ait Chikh, Z.A. and Idrissi, H. and Srhiri, A., Electrochemical Properties of Poly (2-Mercaptobenzimidazole) Films Prepared in Methanol Alkaline Solvent on Copper-Zinc Alloy (September 2000). Chemistry Preprint Archive Vol. 2000, Issue 9, pp 271-282. Available at SSRN: https://ssrn.com/abstract=2969362

ASSOULI Badr (Contact Author)

Laboratoire d’Electrochimie et des Etudes de Corrosion ( email )

BP 133
Morocco

Z.A. Ait Chikh

Laboratoire d’Electrochimie et des Etudes de Corrosion

BP 133
Morocco

H. Idrissi

Laboratoire de Physico-chimie industrielle, INSA

Lyon
France

A. Srhiri

Laboratoire d’Electrochimie et des Etudes de Corrosion

BP 133
Morocco

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