Octadecyltrimethoxysilane Explained

Octadecyltrimethoxysilane (OTMS) is an organosilicon compound. This colorless liquid is used for preparing hydrophobic coatings and self-assembled monolayers. It is sensitive toward water, irreversibly degrading to a siloxane polymer.^[1] 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.

See also

• Methyltrimethoxysilane
• Octadecyltrichlorosilane

References

1. Book: P. Fontaine . F. Rondelez . Kinetics of Polymerisation in Langmuir Monolayers of n-Alkyltrimethoxysilane . Short and Long Chains at Interfaces . J. Daillant . P. Guenoun . C. Marques . P. Muller . J. Tran Thanh Van . 1995.

Further reading

• 10.1021/la970438l. Formation and Characterization of Self-assembled Monolayers of Octadecyltrimethoxysilane on Chromium: Application in Low-Energy Electron Lithography. Langmuir. 14. 2. 342–346. 1998. Hild. R. David. C. Müller. H. U. Völkel. B. Kayser. D. R. Grunze. M.
• 10.1021/jp973334s. Langmuir Study of Octadecyltrimethoxysilane Behavior at the Air−Water Interface. The Journal of Physical Chemistry B. 102. 7. 1279–1286. 1998. Vidon. S. Leblanc. R. M.