On the calculation of diffusion coefficients and aggregation numbers of nonionic surfactants in micellar solutions |
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| Authors: | A. I. Rusanov T. G. Movchan E. V. Plotnikova |
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| Affiliation: | 1.Frumkin Institute of Physical Chemistry and Electrochemistry,Russian Academy of Sciences,Moscow,Russia;2.Mendeleev Center,St. Petersburg State University,St. Petersburg,Russia |
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| Abstract: | The calculation of the diffusion coefficients of nonionic surfactants as functions of their concentrations in micellar solutions has been analyzed within the framework of the quasi-chemical version of the law of mass action. The methods of the introduction of initial calculation parameters, calculation scheme for an ideal mixture of monomeric molecules and micelles, and corrections for varying solution viscosity have been considered. Numerical estimations have been performed using aqueous tetraoxyethylene octyl ether, pentaoxyethylene hexyl ether, and octyl-β-D-glucopyranoside solutions as examples. |
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