02127nas a2200241 4500008004100000022001400041245006500055210006200120260006900182300001000251490000700261520128300268653003201551653003301583653002301616653003501639653003401674653002001708100002401728700002001752700001801772856009501790 2007 eng d a0300-944000aPoly(o-ethylaniline) coatings for stainless steel protection0 aPolyoethylaniline coatings for stainless steel protection aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcJAN a54-630 v583 a
The poly(o-ethylaniline) coatings were electrochemically synthesized on 304-stainless steel by using cyclic voltammetry from an aqueous salicylate medium. Cyclic voltammetry, UV-vis absorption spectroscopy, Fourier transform infrared spectroscopy and scanning electron microscopy were used to characterize these coatings, which indicates that the aqueous salicylate solution is a suitable medium for the electrochemical polymerization of o-ethyaniline on 304-stainless steel. The performance of poly(o-ethylaniline) as protective coating against corrosion of 304-stainless steel in aqueous 3% NaCl was evaluated by the open circuit potential measurements, potentiodynamic polarization technique, cyclic potentiodynamic polarization measurements and electrochemical impedance spectroscopy. The results of the potentiodynamic polarization and cyclic potentiodynamic polarization demonstrate that the poly(o-ethylaniline) coating provides excellent protection to both localized and general corrosion of 304-stainless steel. The corrosion potential was about 0.190 V more positive in aqueous 3% NaCl for the poly(o-ethylaniline) coated steel than that of bare steel and reduces the corrosion rate of steel almost by a factor of 20. (c) 2006 Elsevier B.V. All rights reserved.
10aConducting polymer coatings10aCorrosion resistant coatings10acyclic voltammetry10aElectrochemical polymerization10apoly(o-ethylaniline) coatings10astainless steel1 aChaudhari, Sudeshna1 aSainkar, S., R.1 aPatil, P., P. uhttp://library.ncl.res.in/content/polyo-ethylaniline-coatings-stainless-steel-protection-0