B. Trachli, M. Keddam, H. Takenouti
May 1, 2002
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Quality indicators
Journal
Corrosion Science
Abstract
Abstract The electro-oxidation of 3-amino 1,2,4-triazole on a copper substrate in alkaline methanol solution produces a homogeneous and adherent polymer film. The formation kinetics of the film was investigated using cyclic voltammetry, chronoamperommetry and quartz crystal microbalance. The protection of poly-amino 1,2,4-triazole (pATA) films obtained by different electropolymerization conditions was determined by electrochemical impedance spectroscopy in 0.5 M NaCl solutions. These results were compared with those obtained with bare copper electrodes immersed in this corrosive medium. The protection of ATA reaches 99% after one month immersion test.