Poly(4-vinylpyridine isopentyl bromide) as inhibitor for corrosion of pure iron in molar sulphuric acid

被引：74

作者：

Chetouani, A

Medjahed, K

Benabadji, KE

Hammouti, B ^{[1
]}

Kertit, S

Mansri, A

机构：

[1] Fac Sci, Lab Chim Eaux & Corros, Oujda, Morocco

[2] Univ Tlemcen, Inst Chim USTL, Tilimsen, Algeria

[3] ENS, Lab Physicochim Mat, Rabat, Morocco

来源：

PROGRESS IN ORGANIC COATINGS | 2003年 / 46卷 / 04期

关键词：

iron; poly(4-vinylpyridine); inhibition; corrosion; sulphuric acid;

D O I：

10.1016/S0300-9440(03)00019-5

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

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 similar to100% around 5 x 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. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：312 / 316

页数：5

共 12 条

[1] An electrochemical study of the action of a poly(vinylpyridine) derivative as inhibitor for corrosion of iron in 1M H2SO4 [J].