Effects of hydrophobizing methods of surfaces on the interaction in aqueous solutions

Naoyuki Ishida, Naotoshi Kinoshita, Minoru Miyahara, Ko Higashitani

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

The hydrophobic interaction between the surfaces hydrophobized by the adsorption of STAC in a STAC solution (system I) and the interaction between the surfaces hydrophobized by the reaction with OTS in water (system II) were investigated using an atomic force microscope, and their difference was compared. Clear differences of the interaction between systems I and II were found with respect to the force curves and the morphology of the surfactants adsorbed on the surfaces. It is postulated that the hydrophobic interaction for system II is attributable to the cavity bridging between the surfaces, but that for system I it is originated from a different mechanism. It is also implied that the existence of the surfactants in the bulk will play an important role for the hydrophobic interaction.

Original languageEnglish
Pages (from-to)387-393
Number of pages7
JournalJournal of Colloid and Interface Science
Volume216
Issue number2
DOIs
Publication statusPublished - Aug 15 1999
Externally publishedYes

Fingerprint

aqueous solutions
Surface-Active Agents
Surface active agents
interactions
OTS (ESA)
surfactants
Microscopes
Adsorption
microscopes
Water
cavities
adsorption
curves
water
2-toluenesulfonamide

Keywords

  • Adsorption
  • Atomic force microscope
  • Cavity bridging
  • Hydrophobic interaction
  • Modification

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry
  • Surfaces and Interfaces

Cite this

Effects of hydrophobizing methods of surfaces on the interaction in aqueous solutions. / Ishida, Naoyuki; Kinoshita, Naotoshi; Miyahara, Minoru; Higashitani, Ko.

In: Journal of Colloid and Interface Science, Vol. 216, No. 2, 15.08.1999, p. 387-393.

Research output: Contribution to journalArticle

Ishida, Naoyuki ; Kinoshita, Naotoshi ; Miyahara, Minoru ; Higashitani, Ko. / Effects of hydrophobizing methods of surfaces on the interaction in aqueous solutions. In: Journal of Colloid and Interface Science. 1999 ; Vol. 216, No. 2. pp. 387-393.
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