Charge-induced unilamellar vesicle formation and phase separation in solutions of Di-n-decylmethylamine oxide

Article Abstract:

A new double-tail alkylamine oxide surfactant, di-n-decylmethylamine oxide (2C10MAO), which exists as either a nonionic or cationic species depending on the pH of the aqueous solutions, is prepared and the vesicle formation of 2C10MAO as a function of the degree of protonation and the surfactant concentration is investigated. The stability of ULVs against multilamellar vesicles is contributed partly to undulation force and partly to the adjustable nature of the monolayer spontaneous curvature of amine oxides.

All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Methylamines, Phase transformations (Statistical physics), Phase transitions (Physics), Hydrogen-ion concentration, pH

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Temperature-sensitive aqueous surfactant two-phase system formation in cationic-anionic surfactant systems

Article Abstract:

Temperature-induced aqueous surfactant two-phase system (T-ASTP) is investigated in a series of conventional mixed cationic-anionic surfactant systems. The formation of T-ASTP can be attributed to temperature-induced vesicle aggregation.

Surface active agents, Surface Active Agent Manufacturing, Surface chemistry

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