Abstract
The formation of a protective layer of γ-methacryloxypropyltrimethoxysilane (γ-MPS) on copper is studied by diffuse reflectance infrared spectroscopy (DRIFT), gravimetric chemical (weight loss) and electrochemical (cyclic voltammetry and potentiodynamic polarization) measurements. By simple immersion in the silanic bath (90/5/5v/v ethanol/water/silane), this agent immediately physisorbed on copper, but the protective effects are poor. Thiolate and siloxane band formation improve the performances of the silanic layer on the surface of copper especially after heat treatment process. Chemical and electrochemical measurements show that the protective action of heat treatment (HT/Cu-MPS) process is higher than that of aged process (aged/Cu-MPS).
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