Synthesis and corrosion protection study of poly(o-ethylaniline) coatings on copper
Title | Synthesis and corrosion protection study of poly(o-ethylaniline) coatings on copper |
Publication Type | Journal Article |
Year of Publication | 2008 |
Authors | Shinde, V, Gaikwad, AB, Patil, PP |
Journal | Surface & Coatings Technology |
Volume | 202 |
Issue | 12 |
Pagination | 2591-2602 |
Date Published | MAR |
Type of Article | Article |
ISSN | 0257-8972 |
Keywords | conducting polymers, Copper, Corrosion resistant coatings, cyclic voltammetry, Electrochemical polymerization, poly(o-ethylaniline) coatings |
Abstract | Poly(o-ethylaniline) coatings were synthesized on copper (Cu) by electrochemical polymerization of o-ethylaniline in an aqueous salicylate solution by using cyclic voltammetry. The characterization of these coatings was carried out by cyclic voltammetry, UV-visible absorption spectroscopy, Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The results of these characterizations indicate that the aqueous salicylate solution is a suitable medium for the electrochemical polymerization of o-ethylaniline to generate strongly adherent and smooth poly(o-ethylaniline) coatings on Cu substrates. The performance of poly(o-ethylaniline) as protective coating against corrosion of Cu in aqueous 3% NaCl was assessed by the potentiodynamic polarization technique and electrochemical impedance spectroscopy (EIS). The results of these studies demonstrate that the poly(o-ethylaniline) coating has ability to protect the Cu against corrosion. The corrosion potential was about 0.078 V versus SCE more positive in aqueous 3% NaCl for the poly(o-ethylanitine) coated Cu (similar to 15 mu m thick) than that of uncoated Cu and reduces the corrosion rate of Cu almost by a factor of 70. (C) 2007 Elsevier B.V. All rights reserved. |
DOI | 10.1016/j.surfcoat.2007.09.025 |
Type of Journal (Indian or Foreign) | Foreign |
Impact Factor (IF) | 2.139 |