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Critical micelle concentration and the transition point for micellar size distribution

Journal Article · · J. Phys. Chem.; (United States)
DOI:https://doi.org/10.1021/j150620a033· OSTI ID:5727262
The equation assumed by Ben-Naim and Stillinger for the free energy of micellization is used to demonstrate that, contrary to their assertion, the critical concentration corresponding to a transition in the shape of the micellar size distribution has a value close to the conventional cmc. The ratio cmc/C is shown to decrease sharply from the large value of 20 obtained by Ben-Naim and Stillinger, to a value of 1.55, if one of the parameters is assigned a physically more plausible value. This value accounts better for the cooperative-self-association of the surfactant molecules. 10 references.
OSTI ID:
5727262
Journal Information:
J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 85:20; ISSN JPCHA
Country of Publication:
United States
Language:
English