The effects of temperature on the critical micelle concentrations of alkyl α-picolinium bromides

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Abstract
The temperature dependence of the critical micelle concentrations of decyl, dodecyl and tetradecyl α-picolinium bromides has been determined by measurement of conductance. Constants for the equation relating log. CMC and alkyl chain length have been calculated for the temperature range 5° to 70°, in increments of 5°. An estimate of the effect of temperature upon the degree of counterion binding is recorded. Thermodynamic parameters have been calculated using the uncharged phase-separation model and a theoretical interpretation of the process of micellization given.