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Title: Alkaline hydrolysis of isatin in the presence of mixed CTAB and Triton X-100 micellar systems: Micellisation and kinetic investigations
Authors: Srikanth, V
Shyamala, P
Satyanarayana, A
Rao, P V Subba
Keywords: Kinetics
Mixed micelles
Alkaline hydrolysis
Synergetic effect
Issue Date: Dec-2012
Publisher: NISCAIR-CSIR, India
Abstract: Micellisation behaviour of mixed surfactants of CTAB and Triton X-100 in the presence of isatin has been studied by surface tension measurements over a wide range of Triton X-100 mole fractions and total surfactant concentrations. The average interaction parameter has been evaluated using Rubingh theory and found to be -0.396 indicating synergistic behaviour in the mixed micelles. Kinetic studies showed that the pseudo first order rate constant increases with increase in mole fraction of Triton X-100 at constant total surfactant concentration and decreases with increase in total surfactant concentration at constant mole fraction of Triton X-100. Kinetic analysis has been carried out using a Berezin pseudophase model and binding constants determined to explain the micellar effect.
Description: 1701-1705
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.51A(12) [December 2012]

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