Structure Analysis of Liquid Crystal Emulsions Using X-ray Scattering Analysis

Abstract

: In this study, we prepared liquid crystal emulsions composed of C 12-20 alkyl glucoside, C 14-22 alcohol, and behenyl alcohol and performed structure analysis using various analytical equipment. First, as an important characteristic of liquid crystal emulsions, maltese cross patterns and multi-layer structure were observed by a polarized microscope and cryo-SEM. Also, formation of liquid crystal phase was confirmed by DSC and multi-layer lamellar structure having an interlayer spacing approximately 305 Å was confirmed by small angle x-ray scattering (SAXS). The alkyl chain arrange-ment formed orthorhombic structure of a lamellar structure of the liquid crystal emulsion was confirmed by wide angle x-ray scattering (WAXS). These results suggest that information on the various physical properties obtained through the research of liquid crystal emulsion structure is expected to be widely used in cosmetics development in the future.