PREVENTION OF CORROSION OF IRON IN ACIDIC MEDIA USING POLY(O-METHOXY-ANILINE)

被引：124

作者：

SATHIYANARAYANAN, S ^{[1
]}

BALAKRISHNAN, K ^{[1
]}

DHAWAN, SK ^{[1
]}

TRIVEDI, DC ^{[1
]}

机构：

[1] CENT ELECTROCHEM RES INST,CTR STUDIES CONDUCTING POLYMERS,KARAIKKUDI 623006,TAMIL NADU,INDIA

来源：

ELECTROCHIMICA ACTA | 1994年 / 39卷 / 06期

关键词：

POLY(METHOXY-ANILINE); CONDUCTING POLYMERS; CORROSION INHIBITION; ADSORPTION; AROMATIC;

D O I：

10.1016/0013-4686(94)80032-4

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The inhibitive action of ortho-methoxy substituted polyaniline, a new class of conducting polymer, on the corrosion of iron in acidic chloride solution has been evaluated by Electrochemical Impedance Spectroscopy (EIS), Linear Polarization Resistance (LPR), Weight Loss (WL) and by the Logarithmic Polarization Technique (LPT). Inhibition efficiencies of nearly 80-88% have been observed even at 25ppm concentration. Double-layer capacitance studies indicate a strong adsorption of polymer following the Temkin adsorption isotherm is largely responsible for its inhibitive action.

引用

页码：831 / 837

页数：7

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