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Effect of Solvents on Interactions between Hydrophobic Self-Assembled Monolayers

✍ Scribed by Efrosini Kokkoli; Charles F. Zukoski

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
95 KB
Volume
209
Category
Article
ISSN
0021-9797

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✦ Synopsis

An atomic force microscope was used to measure forces between self-assembled monolayers (SAMs) of hexadecanethiol as a function of solvent type. Solvents alter interactions between surfaces by changing the wetting properties of the surface. Adhesive forces decrease with solvent dielectric constant and vary monotonically for mixtures of water and ethanol, ethanol and methanol, and water and ethylene glycol. This study demonstrates that interactions and adhesion between hydrophobic SAMs can be manipulated through changes in the contact angle of the surface. Copyright 1999 Academic Press.

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