Phase Diagram,Viscosity and Conductivity of alpha-Sulfonate Methyl Esters Derived from Palm Stearin/1-Butanol/Alkane/Water Systems

摘要

Phase diagrams of sodium salt alpha-sulfonate methyl esters derived from palm stearin (alpha-SMEPS)/1-bu-tanol/alkane/water systems were constructed at 30.0+-0.1 deg C.The presence and changes in the isotropic region of the quaternary mixtures of surfactant,co-surfactant,alkane (oil) and water were mapped with different oil compound (different hydrocarbon chain lengths).An attempt to elucidate the self-association behavior of alpha-SMEPS in the presence of butanol as co-surfactant and the effect of different alkane chain lengths was conducted by studying the viscosity and electrical conductivity behavior.Preliminary investigation suggested that the formation of oil-in-water (o/w) microemulsion,bicontinuous structure and water-in-oil microemulsion were based on the composition of mixtures in the isotropic region.