Abstract
FT-IR spectroscopy was used to study the nature of the interface between silanes and stone. Methyltrimethoxysilane (MTMOS), 3-aminopropyltriethoxysilane (APS), and vinyltrimethoxysilane (VTS) were applied to three kinds of stone: limestone, sandstone and khondalite (a metamorphosed sandstone). Infrared spectra of silanes on the stone surfaces were obtained throughout the spectral region studied (4000–450 cm -1 ) by a digital subtraction technique and were compared with spectra of pure polymerized silanes. APS, VTS have been shown to interact with all three types of stone, however, interaction of MTMOS was observed only with sandstone and khondalite stone.
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