Effect of ethanol on the partition coefficient of cyclohexylacetate between bulk and cetyltrimethylammonium bromide micellar pseudophases

Tuncay M., Gokturk S.

SPECTROSCOPY LETTERS, vol.30, no.5, pp.825-834, 1997 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 5
  • Publication Date: 1997
  • Doi Number: 10.1080/00387019708001631
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.825-834
  • Istanbul University Affiliated: No


Variation of the partition coefficient of cyclohexylacetate (CA) was studied by a differential absorption spectroscopic method as a function of ethanol and (CTAB) cetyltrimethylammoniumbromide concentrations. Approach used was based upon the pseudo-two phase model, including effect of ethanol concentrations on the critical micelle concentration (CMC) of CTAB. Ethanol enhanced micelle formation of CTAB at concentrations below 1% by volume, had a slight inhibitory effect at higher concentrations and totally inhibited at a concentration above 15% by volume.