Kinetics of micellar solubilization

Experimental observations based on diverse experimental techniques show that just as micelles are in rapid equilibrium with monomers (Aj), miceUized solubi-lizate molecules are also in rapid equilibrium with solubilizate molecules in aqueous pseudophase as represented by Equation 1.26 

It is apparent from the definitions of k soi and kr oi that the ratio k soA soi represents the micellar binding constant (K) of a solubilizate (S), which is related to apparent micellar binding constant Kg = [SM]/([S][Suf].rCMC) (where [S ] and [Sufjx represent concentration of miceUized solubilizate and total concentration of surfactant, respectively) by the relationship K = n Kg with n representing the aggregation number of the micelle. The value of Kg of a solubilizate can be determined directly by various experimental techniques, and such a value should be comparable with K/n obtained from rate constants k/ soi and k- oi and aggregation number n. The values of k+s i, k- oi, and Kg (determined directly by the use 

Chemical relaxation methods such as SF, TJ, PJ, concennation jump, and ultrasonic relaxation techniques have been used to study the kinetics of the rate of micellar solubilization. The residence time of a micelle at a given aggregation number is of the order of 0.2 to 10 (tsec, whereas the mean lifetime of a 

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