Solubilization of triglycerides in liquid crystals of nonionic surfactant

Phase Behavior, Formation, and Rheology of Cubic Phase and Related Gel Emulsion in Tween80/Water/Oil Systems

“…With the addition of oil in the W m or H 1 phase, the I 1 phase appeared. Similar observation was found in a less hydrophilic surfactant system 5,12) . Closer view of and show that there is no significant difference in phase sequence but the solubilization of oil in different surfactant aggregates differs slightly.…”

“…The micelles in I 1 phase have high positive interfacial curvature; therefore, they are usually found in aqueous solution of highly hydrophilic surfactants and amphiphilic polymers [6][7][8][9][10] . Moreover, the solubilization of oil in the micellar (W m ) or hexagonal phase (H 1 ) can induce the I 1 phase in water/surfactant/oil ternary systems 11,12) . It has been found that large amount of oil can be incorporated in the O/I 1 gel emulsion, and this is not dependent on oil nature 13) .…”

Glycerol effects on the formation and rheology of cubic phase and related gel emulsion

“…Note that in the binary mixture, the micellar cubic (I 1 ) phase does not exist at 25 • C; however, it appears when a fraction of dodecane is added into the W m (∼40 wt% C 12 EO 8 ) phase. A similar phase sequence was observed with the addition of decane [2] and triglycerides [17,18]. We have characterized the liquid crystals with the help of SAXS and a crosspolarizer.…”

“…Generally, hydrophilic surfactants form the I 1 phase in aqueous binary systems, e.g., poly(oxyethylene) alkyl ether [11], poly(oxyethylene)-poly(oxypropylene)-poly(oxyethylene) triblock copolymer [12,13], polyglycerol fatty acid ester [14], and sucrose fatty acid ester [15]. Besides, addition of oils into the micellar solutions (W m ) or hexagonal phase (H 1 ) often induce the I 1 phase in less hydrophilic surfactant systems [16][17][18]. There are some reports documented regarding the rheolgical behavior of the I 1 phase [19][20][21] and O/I 1 gel emulsion [3].…”

Effect of molecular weight of triglycerides on the formation and rheological behavior of cubic and hexagonal phase based gel emulsions

“…Generally, the I 1 phase is formed in aqueous system with very hydrophilic nonionic surfactant such as poly(oxyehtylene) alkyl ether [25], poly(oxyethylene)-poly(oxypropylene)-poly(oxyethylene) triblock copolymer [26,27], polyglycerol fatty acid ester [28], and sucrose fatty acid ester [29]. Besides, the solubilization of oil in the micellar (W m ) or hexagonal phase (H 1 ) often induces the I 1 phase [21,30]. The I 1 phase is normally formed between the micellar and the hexagonal phase as a function of surfactant concentration.…”