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Polymeric Complexes of Polyaniline as Anticorrosion Coatings

Published online by Cambridge University Press:  10 February 2011

R. J. Racicot ,
S. C. Yang  and
R. Brown
R. J. Racicot
Affiliation:
Department of Chemistry, United States Air Force Academy, Colorado Springs, CO 80840
S. C. Yang
Affiliation:
Department of Chemistry, University of Rhode Island, Kingston, RI 02881
R. Brown
Affiliation:
Department of Chemical Engineering, University of Rhode Island, Kingston, RI 02881
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Abstract

During the past few years there has been a strong interest in developing conducting polymers as an alternative to the traditional anticorrosion coatings. One of the driving forces for this research comes from the need for an environmentally friendly chromate-free anticorrosion coating for highstrength light weight aluminum alloys. The possibilities for a new scratch-tolerant paint for steel prompted the development of conductive polymer anticorrosion paints. By molecular engineering, we have synthesized a double-strand polymeric complex of polyaniline that is suitable as an anticorrosion paint on metals in low pH environments. In this article, we will discuss (1) the molecular design for solubility and adhesion, (2) the effectiveness of the electroactive coating under electrochemical impedance tests, and (3) a mechanistic study of the anticorrosion mechanism by examining the polymer/metal interfacial interactions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 488: Symposium J – Electrical, Optical & Magnetic Properties of Organic IV , 1997 , 733
Copyright
Copyright © Materials Research Society 1998

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