Thermodynamic and kinetic stability. Properties of micelles and vesicles formed by the decanoic acid/decanoate system
Document Type
Article
Publication Date
1-1-2003
Abstract
The dialysis of micellar and vesicular systems, through a cellulose acetate membrane permeable only to monomer surfactant, has been investigated for the system sodium decanoate/decanoic acid as a function of pH, in pH regions where micelles (pH 9) or vesicles (pH 7.5) are present. The results provide data that are helpful in establishing the thermodynamic state of the systems and the interplay of the relevant equilibrium and kinetic considerations. Additionally, the kinetics of spontaneous formation and destruction of vesicles when subjected to a pH-jump perturbation have been studied. Changes are rapid, taking place over a time scale of a few seconds.
Keywords
Dialysis Fatty acid Formation Kinetics Liposomes Micelles Soap Thermodynamics Vesicle Monomers pH Vesicular systems cellulose acetate decanoic acid monomer surfactant article data analysis equilibrium constant membrane permeability micelle molecular stability priority journal
Divisions
CHEMISTRY
Publication Title
Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume
213
Issue
1