Swollen cubic lyotropic ternary phases with Pn3m symmetry and reduced hardness were obtained from a specific binary mixture of cubic phase-forming (phytantriol) and lamellar phase-forming (decaglycerol monooleate) compounds. The microstructures were determined by using a small-angle x-ray scattering technique. The softness and temperature-induced phase transitions were investigated by means of rheology. The incorporation of a surface-active fragrance compound (linalool) at concentrations up to 6 wt. % induced a structural transition toward a softer Im3m bulk cubic phase with longer water channels. Higher linalool concentrations allowed for the spontaneous dispersion of the bulk cubic phase into microscopic particles with a cubic structure (cubosomes).
Swollen cubic phases with reduced hardness solubilizing a model fragrance oil as a co-surfactant
Note: This paper is part of the JCP Special Topic on Colloidal Gels.
Vera Tchakalova, Thomas Zemb, Fabienne Testard; Swollen cubic phases with reduced hardness solubilizing a model fragrance oil as a co-surfactant. J. Chem. Phys. 7 December 2022; 157 (21): 214901. https://doi.org/10.1063/5.0124021
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