Electrolyte effects on a nearly second order nematic-isotropic phase transition in a micellar liquid crystal

Abstract

The phase diagram and results from magnetic susceptibility measurements in the isotropic phase are presented for the lyotropic liquid crystal cesium perfluoro octanoate+water in the presence of an added salt CsCl. Based upon the evolution of the Cotton-Mouton coefficient and in the context of an Onsager-type calculation we speculate on the micellar conformation as a fonction of electrolyte concentration Diagramme de phase et mesures de susceptibilite magnetique de la phase perfluorooctanoate de cesium+eau en presence de sel de CsCl. Structure des micelles en fonction de la concentration d'electrolyte