Determination of Counterion Binding Degree of Micelles by Ion-selective Electrode

Abstract

Abstract: An advanced method used to determine the counterion activity in micellar solution by ion-selective electrode is described, and a new equation dC_c^f/dC_i^T=-K is derived where C_c^f denotes the concentration of unbound counterions, and C_i^T is the concentration of ionic surfactant. This equation is used to calculate the counterion binding degree(K) of micelles. K values of eight kinds of ionic micelles are investigated. They are in the range of 0. 6～0. 70.

Key words: Counterion binding degree, Micelle, Surfactant, Ion-selective electrode

TrendMD:

Zhu Demin, Zhao Guoxi . Determination of Counterion Binding Degree of Micelles by Ion-selective Electrode[J]. Chem. J. Chinese Universities, 1990, 11(7): 774.

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Determination of Counterion Binding Degree of Micelles by Ion-selective Electrode

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