Beck, R. published the artcilePhase behaviour and physical properties of mixtures of calcium salts of α-sulfonated fatty acid methyl ester and a cosurfactant, Application of 3-((2-Ethylhexyl)oxy)propane-1,2-diol, the publication is Physical Chemistry Chemical Physics (2001), 3(24), 5438-5443, database is CAplus.
We have studied the phase behavior of mixtures of calcium salts of α-sulfonated fatty acid Me ester Ca(Cx-α-MES)2 and a monoglycerin ether as cosurfactant (EHG). The mol. interactions between the surfactant and the cosurfactant and the influence on the phase behavior have been studied systematically. With increasing cosurfactant concentration the micellar L1-phase shows a transition to an Lα-phase and an L3 sponge phase. The L3-phase is observed for the first time in a ternary phase diagram of a Ca-salt of a α-sulfonated fatty acid Me ester, the cosurfactant 2-ethylhexyl-monoglyceride and water. As for other ternary surfactant/cosurfactant systems, the L3-phase occurs with increasing cosurfactant/surfactant ratios after the Lα-phase. Some properties of the newly observed L3-phase are the same as for other known L3-phases. It is a low viscosity, optically isotropic fluid with a low flow birefringence. The time constants τ of the elec. birefringence results scale with τ ∼ Φ-3. Its conductivity is very much higher than the conductivity of the neighboring Lα-phase. However there are some marked differences from known normal L3-phases. The novel L3-phase is thermodynamically stable in spite of ionic charges on the bilayer. There is no two phase region between the Lα and the L3-phase in the system Ca(C14-αMES)2/EHG and the L3-phase is stable over a wide cosurfactant/surfactant ratio between one and two. In SANS measurements it shows a broad correlation peak that occurs at about the same position as the sharper peak in the Lα-phase. The structure of the L3-phase is demonstrated by FF-TEM micrographs.
Physical Chemistry Chemical Physics published new progress about 70445-33-9. 70445-33-9 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is 3-((2-Ethylhexyl)oxy)propane-1,2-diol, and the molecular formula is C11H24O3, Application of 3-((2-Ethylhexyl)oxy)propane-1,2-diol.
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