THE EFFECT OF SURFACTANT MICELLES ON THE ALKALINE HYDROLYSIS OF DIMETHYLFORMAMIDE
作者:
ZENG XIANCI-IENG,
MENG XIANGGUANG,
WANG QIAN,
ZHANG YUANQIN,
QIN ZIMING,
期刊:
Journal of Dispersion Science and Technology
(Taylor Available online 1997)
卷期:
Volume 18,
issue 4
页码: 369-378
ISSN:0193-2691
年代: 1997
DOI:10.1080/01932699708943741
出版商: Taylor & Francis Group
关键词: Surfactant micelles;Kinetics of micellar catalysis;Alkaline hydrolysis of dimeihylformamide;Thermokinetics;Analog thermoanalytical curve method
数据来源: Taylor
摘要:
The alkaline hydrolysis of dimethylformamide has been studied at 40'C in micellar solutions of single surfactant (CTAB. SDS. Brij 35) with the analog thermoanalytical curve method of thermokinetics. A kinetic equation of micellar catalysis under the condition of highter reactant concentration than micellar concentration ([S]>[M]) has been derived from the pseudophase model of micellar catalysis and some relative assumptions, The kinetic parameters. km, k2mand the association constant of reactant with micelle K1, have been calculated in this way. the results indicate that these surfactant micelles exhibit catalytic effect on the reaction. This is attributed to the micropolarity and local concentration effect of micelles.
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