Abstract
The wettability studies of mixed monolayers containing hydrophobic (CH3) and hydrophilic (OH) terminal groups are discussed. We describe and explain a concentration-driven transition in the contact angles of liquids on mixed monolayers. It is suggested that this phenomenon is due to a possible surface phase transition, resulting in the formation of a prewetting water layer. The self-assembly method opens exciting new possibilities of engineering smooth surfaces. Chemical properties fine-tuned at the molecular level will lead to new levels of control of physicochemical properties of surfaces. Long-chain thiol derivatives can be used in model surfaces to attain control of surface roughness and chemical properties. Combinations of surface functionalities give a large variety of surfaces, thus allowing a systematic control of surface free energy, and chemical affinity.
Original language | English (US) |
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Pages (from-to) | 48-53 |
Number of pages | 6 |
Journal | Thin Solid Films |
Volume | 273 |
Issue number | 1-2 |
DOIs | |
State | Published - Feb 1996 |
Keywords
- Monolayers
- Surface and interface states
- Wetting
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Metals and Alloys
- Materials Chemistry