Electric birefringence relaxation spectroscopy of linear micelles in aqueous cetyltrimethylammonium bromide solutions with sodium salicylate

Junichi Oizumi, Yasuyuki Kimura, Kohzo Ito, Relnosuke Hayakawa

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The influence of sodium salicylate (NaSal) concentration on the linear micelle formation in an aqueous solution of cetyltrimethylammonium bromide (CTAB) is investigated by the frequency-domain electric birefringence relaxation spectroscopy (FEE method). The contour length L of linear micelles is found to increase with increasing NaSal concentration Cs but for further increase of Cs in excess of the CTAB concentration, L decreases, i.e., linear micelles break into shorter pieces. The FEB result indicates also that the diffusion constant of salicylate ions bound to a linear micelle is nearly independent of Cs with an average value smaller than that of free salicylate ions.

Original languageEnglish
Pages (from-to)9137-9141
Number of pages5
JournalJournal of Chemical Physics
Volume104
Issue number22
DOIs
Publication statusPublished - Jan 1 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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