title: Spatial heterogeneity in a lyotropic liquid crystal with hexagonal phase.
abstract: Non-ionic surfactant hexaethylene glycol, C(12)E(6), in water self-assembles into various kinds of mesophases by varying the surfactant concentration. A spatial heterogeneity was discussed on the basis of the diffusion of probe particles dispersed in the C(12)E(6)-water solution. Interestingly, at 50 wt% C(12)E(6) where the hexagonal structure was formed, two kinds of motion of probe particles were observed: some particles normally diffused while others were restricted, indicating the existence of a heterogeneity in the physical properties. Such heterogeneity can be explained in terms of heterogeneous structures composed of hexagonal domains with isotropic-like regions.
authors.affiliation: Department of Applied Chemistry, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan.
authors.forename: David P
authors.initials: DP
authors.lastname: Penaloza
authors.forename: Koichiro
authors.initials: K
authors.lastname: Hori
authors.forename: Atsuomi
authors.initials: A
authors.lastname: Shundo
authors.forename: Keiji
authors.initials: K
authors.lastname: Tanaka