title: Microemulsion formed by alkyl polyglucoside and an alkyl glycerol ether with weakly charged films.
abstract: We have studied the effects on phase equilibria of a nonionic surfactant mixture-water-oil system when replacing small amount of surfactant molecules by ionic surfactant, sodium dodecyl sulfate (SDS). The nonionic surfactant system contains dodecyl-beta-D-maltoside (C(12)AG2) and iso-octyl glyceryl ether (i-C(8)GE) as cosurfactant, water and cyclohexane at constant water to oil ratio of 60/40 (w/w). Adding a small amount of SDS has large impact on the phase behavior. Clear liquid crystalline phase and upper microemulsion phase are added to the phase sequence at high i-C(8)GE/(C(12)AG2+i-C(8)GE) ratio. We also compare the phase equilibria of pure dodecyl maltoside system with polyglucosides mixture system.
authors.affiliation: Tokyo Research Lab., Kao Corporation, 2-1-3, Bunka, Sumida-ku, 131-8501, Tokyo, Japan
authors.initials: K
authors.lastname: Fukuda
authors.initials: U
authors.lastname: Olsson
authors.initials: M
authors.lastname: Ueno