Comparison of corrosion protection between double strands of polyaniline and poly-o-anisidine with poly(Acrylic Acid-Co-Acryl Amide) on steel

Mahmoudian, M.R. and Alias, Y. and Basirun, Wan Jefrey (2012) Comparison of corrosion protection between double strands of polyaniline and poly-o-anisidine with poly(Acrylic Acid-Co-Acryl Amide) on steel. Journal of Coatings Technology and Research, 9 (1). pp. 79-86. ISSN 1547-0091

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Abstract

Double strands of polyaniline (PAn) and poly(o-anisidine) (POAn) with poly(acrylic acid-co-acryl amide) (PAA-co-AA) were successfully prepared on steel as undercoating, by immersion of the pretreated surfaces into a PAn: (PAA-co-AA) and POAn: (PAA-co-AA) saturated DMF solution separately. The undercoatings formed on the steel were characterized by Fourier transform infrared spectroscopy (FTIR) techniques. A commercial paint (Nippon Paint, nonadded Chrome) was used as topcoating. Electrode/electroactive polymer/paint/electrolyte system was studied by electrochemical impedance spectroscopy (EIS). The EIS studies show that during the first 18 days immersion time in 3.5% solution of NaCl, paint/PAn coating has better corrosion resistance than paint/POAn coating while in the final week of immersion time, the pore resistance (R-po) and coating capacitance (C-c) of paint/POAn are higher and lower than the paint/PAn, respectively.

Item Type: Article
Additional Information: Department of Chemistry, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Steel, Paint, Aniline, Pore resistance, Coating, impedance measurements, coating performance, organic coatings, mild-steel, polypyrrole, paint
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Dept of Chemistry
Depositing User: Miss Malisa Diana
Date Deposited: 25 Jul 2013 01:09
Last Modified: 13 Sep 2019 06:44
URI: http://eprints.um.edu.my/id/eprint/7527

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