Wetting studies of molecularly engineered surfaces

Research output: Contribution to journalArticlepeer-review

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 languageEnglish (US)
Pages (from-to)48-53
Number of pages6
JournalThin Solid Films
Volume273
Issue number1-2
DOIs
StatePublished - 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

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