Solubilization of calixarenes in an aliphatic organic solvent by reverse micelles

Masahiro Goto, Kenji Shinohara, Kojiro Shimojo, Tatsuya Oshima, Fukiko Kubota

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14 Citations (Scopus)


Solubilization of a calix[4]arene carboxylic acid derivative in an aliphatic organic solvent was accomplished by utilizing a reverse micellar solution. The reverse micellar solution was prepared by cationic cetyltrimethyl ammonium bromide (CTAB) or anionic bis-2-ethylhexyl sulfosuccinate (AOT). Both reverse micellar solutions facilitate the solubilization of the calix[4]arene carboxylic acid derivative in isooctane. The concentration of calix[4]arene solubilized in the reverse micelles increases with an increase of surfactant concentration. The water content in the reverse micelles (W0 = [H2O]/[surfactant]) also affects the solubilization behavior of calix[4]arene. The optimum water content existed for the formation of the reverse micelles and the value was around 20. The extraction performance of calix[4]arene solubilized was investigated for yttrium (III) in isooctane. The extraction ability of calix[4]arene was enhanced by solubilizing in the anionic reverse micellar solution.

Original languageEnglish
Pages (from-to)1012-1016
Number of pages5
Issue number10
Publication statusPublished - Oct 1 2002

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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