Tags: Chemical Compound, Chemical Substance.
Octadecyltrimethoxysilane is an organosilicon compound commonly called OTMS. This colourless liquid is used for preparing hydrophobic coatings and self-assembled monolayers. It is sensitive toward water irreversibly degrading to a siloxane polymer. It places a C18H39SiO3 cap on oxide surfaces. The formation of OTMS monolayers is used for converting hydrophilic surfaces to hydrophobic surfaces e.g. for use in certain areas of nanotechnology and analytical chemistry.