Line tension and wetting behavior of an air/hexadecane/aqueous surfactant system

Youichi Takata, Hiroki Matsubara, Yoshimori Kikuchi, Norihiro Ikeda, Takashi Matsuda, Takanori Takiue, Makoto Aratono

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


The line tension of an air/hexadecane/aqueous solution of an dodecyltrimethylammonium bromide (DTAB) system was measured as a function of the molality of DTAB at 298.15 K by means of a newly constructed apparatus. It was estimated to be on the order of 10-10-10-12 N, which is comparable to the theoretical estimation. Furthermore, its sign was reversed from positive to negative in the vicinity of the wetting transition concentration. The reversal of the sign was examined on the basis of our experimental findings on the wetting transition and the theory of Indekeu.

Original languageEnglish
Pages (from-to)8594-8596
Number of pages3
Issue number19
Publication statusPublished - Sept 13 2005

All Science Journal Classification (ASJC) codes

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


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