The directional formation and protective effect of self-assembling vinyl siloxane nanolayers on copper surface

With the use of the electrochemical-quartz crystal microbalance technique, scanner-assisted electrochemical reflectometry, and X-ray spectral microanalysis, adsorption of vinyl triethoxysilane on a copper surface from an aqueous solution is studied and the possibilities of directional formation of self-assembling layers and their protective effect in corrosive chloride-containing electrolytes are determined. The greatest protective effect is observed at a thickness of 3.8 molecular layers when the most compact film, which hampers the adsorption of chloride ions and substantially decreases the rate of their interaction with the surface copper atoms, is formed.