کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10276141 | 463419 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electropolymerization of poly(N-methylaniline) on mild steel: Synthesis, characterization and corrosion protection
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Poly(N-methylaniline) (PNMA) coatings on a steel disc electrode have been successfully electrodeposited from N-methylaniline (NMA) in aqueous oxalic acid solution using potentiodynamic, potentiostatic and galvanostatic techniques. For the potentiodynamic synthesis, formation of the PNMA coatings was found to be strongly dependent on the upper potential limits and scan rates. Smooth and strongly adherent PNMA coatings were obtained under potentiodynamic conditions during sequential scanning of the potential region between â0.5 and 1.0Â V, at a scan rate of 10Â mVÂ sâ1. The PNMA coatings were characterized by cyclic voltammetry, FT-IR and UV-Vis spectroscopy and SEM techniques. It was shown that NMA converts the iron(III) species to iron(II) chemically, causing a decrease in the current value corresponding to the electrochemical conversion (repassivation). The corrosion behavior of steels covered by polymer was investigated by anodic potentiodynamic polarization technique and the Tafel test. The corrosion resistance of the PNMA coated steel was found to be considerably higher and the corrosion rate was much slower than that of bare steel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 578, Issue 2, 1 May 2005, Pages 231-238
Journal: Journal of Electroanalytical Chemistry - Volume 578, Issue 2, 1 May 2005, Pages 231-238
نویسندگان
Aziz YagËan, Nuran Ãzçiçek Pekmez, Attila Yildiz,