Modification of the Metallic Surface of Silver by the Formation of Alkanethiol Self-assembled Monolayers with Subsequent Reaction with Chlorosilanes

摘要

This report describes effect of the preparation procedures on the quality of self-assembled monolayers (SAMs) on the silver surface for developing protective films against attack by atmospheric pollutants including oxidation. Various silver substrates covered with the 11-mercapto-1-undecanol (MUO) and chemically modified MUO with octyltrichlorosilane were analyzed by X-ray Photoelectron Spectroscopy (XPS). Difference in composition of monolayers from n-alkanethiols at Ag relative to the method used for cleaning the surface and other preparation details were observed. Contrarily to the assembly of high-quality alkanethiolate monolayers and its subsequent modification by chlorosilanes on gold surface preparation of SAMs on the surface of silver were more complex and the least reproducible.