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Issue 0, 1975
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Micellization of mixed nonionic surface active agents

Abstract

A theory is developed for micellization in systems of mixed nonionic surfactants. Assumptions of ideal mixing in the micellel and of a simple phase separation model enable the concentration of each monomeric species and hence the micellar composition to be calculated as a function of total concentration (c). For mixtures of homologous surfactants the surface tension (γ) at the air-water interface is calculated by assuming the mixed monolayer to be in equilibrium with the monomers in solution. The γ against log c curve in such a system is predicted to have a minimum. Comparison with γ against log c curves obtained experimentally shows excellent agreement with theory over the whole concentration range both below and above the c.m.c.

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Article information


J. Chem. Soc., Faraday Trans. 1, 1975,71, 1327-1334
Article type
Paper

Micellization of mixed nonionic surface active agents

J. H. Clint, J. Chem. Soc., Faraday Trans. 1, 1975, 71, 1327 DOI: 10.1039/F19757101327

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