Temperature effect on the adsorption of fluorooctanols at the hexane/water interface

Takanori Takiue, Koichi Sugino, Taketo Higashi, Takayuki Toyomasu, Yoshiteru Hayami, Norihiro Ikeda, Makoto Aratono

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The temperature effect on the adsorption of fluorooctanols at the hexane/water interface was discussed. The interfacial tensions of the hexane solution of fluorooctanols(1,1,2,2-tetrahydrotridecafluorooctanol, TFC8OH, and 1,1-dihydropentadecaflurooctanol, DFC8OH) against water were measured as a function of temperature and molality under atmospheric pressure. By drawing the interfacial pressure π vs mean area per adsorbed molecule A curves, it was concluded that the adsorbed film of TFC8OH exhibits a first-order phase transition between the gaseous and expanded states.

Original languageEnglish
Pages (from-to)8098-8103
Number of pages6
JournalLangmuir
Volume17
Issue number26
DOIs
Publication statusPublished - Dec 25 2001

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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