Association of Alcohol with Cationic Micelles

Abstract

Partition constants for several aliphatic alcohols between water and micellar phases were determined using ultrafiltration and dialysis. Results indicated that the micellized concentrations of the long-chain alcohol followed a Langmuir adsorption isotherm type of profile. Association of pentanol and hexanol with cylindrical micelles induces an increase in size and in dissociation degree (α), followed by a micellar breakdown. These changes can be explained in terms of the number of alcohol molecules per micelle. © 1992, American Chemical Society. All rights reserved.