LAUSR

Abstract Stearic acid (SA) mixed with alkali in water can form different fascinating aggregates in solution. The phase behavior of SA and alkali in water was observed in this work, and the apparent viscosity was measured by rheological measurements. Fatty acid self-assembled into bilayers at pH ≈  p K a and the structure was determined by cryogenic transmission microscopy (cryo-TEM) observations. The ability of stabilizing the emulsion by the bilayers and micelles was compared. The homogeneous emulsion formed by bilayers was gained, indicating that the bilayers have a better emulsion stability. By adjusting the conditions and external stimuli, emulsification and demulsification can be achieved. Based on this background, we carried out the experiments of multi-responses of the emulsion stabilized by bilayers, including pH, CO 2 , light, and temperature.