Micelle catalyzed hydrolysis of carboxylic acid esters in water-β-cyclodextrin-cetyltrimethylammonium bromide systems

Jiaqing Xie, Yi Zhang, Juan Du, Xian Cheng Zeng, Yamamoto Shunzo, Yoshimi Sueishi

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4 Citations (Scopus)

Abstract

The micelle catalyzed hydrolysis of p-nitrophenyl picolinate (PNPP) and p-nitrophenyl acetate (PNPA) in water/ β-cyclodextrin (β-CD)/cetyltrimethylammonium bromide (CTAB) systems were investigated spectrophotometrically at pH 7.02, 25°C. The pseudophase model for micellar catalysis was exployed to quantitatively treat the results obtained. Comparison of the results indicates that neither β-CD nor the β-CD complex form part of the micelles, the aggregation number being the same whether the micelles are in the presence or in the absence of the β-CD and/or the β-CD complex.

Original languageEnglish
Pages (from-to)97-101
Number of pages5
JournalJournal of Dispersion Science and Technology
Volume24
Issue number1
DOIs
Publication statusPublished - Jan 2003

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Keywords

  • Hydrolysis of carboxylic acid ester
  • Micellar catalysis
  • Water/β-CD/CTAB system

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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