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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 24, Number 10
BKCSDE 24(10)
October 20, 2003

Title	Description of Temperature Dependence of Critical Micelle Concentration
Author	Hong-Un Kim, Kyung-Hee Lim
Keywords	Critical micelle concentration, Temperature dependence, Thermodynamic potentials of micellization
Abstract	A new equation has been derived on the basis of .Go = .RT lnK, linear behavior of the enthalpy of micellization with temperature, and the Gibbs-Helmholtz relation. It describes correctly the dependence of critical micelle concentration (XCMC) on temperature and has yielded excellent fitting results for various surfactant systems. The new equation results in the linear behavior of the entropy of micellization with temperature and accounts for the compensation phenomena observed for the micellization in aqueous solutions, along with the linear dependence of the enthalpy of micellization on temperature. These results imply that the new equation of XCMC(T) accounts for the temperature dependence of CMC correctly.
Page	1449 - 0
Full Text	PDF

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