Gelatin Microemulsion-Based Gels with the Cationic Surfactant Cetyltrimethylammonium Bromide:A Self-Diffusion and Conductivity Study

摘要

In this contribution we demonstrate that gelatin can jellify also water-in-oil microemulsions based on the cationic surfactant cetyltrimethylammonium bromide(CTAB).The partial stability diagram of the system CTAB + 1-pentanol + water + hexane + gelatin was determined.The resulting microemulsion-based gels(MBGs)were characterized by means of conductivity and pulsed gradient spin-echo NMR.For the first time the water self-diffusion coefficient was measured in gelatin MBGs,and the results were successfully analyzed in terms of diffusion in an interconnected network of aqueous channels.