Lyotropic liquid-crystalline phase composed of aliphatic amino stearates and water

Polarization microscopy, differential calorimetry D.S.C. and X-ray diffraction have been used to examine the lyotropic mesophases which occur in solutions of amino salts in water. The following systems were investigated: methylamino, n-propylamino, n-butylamino, isobutyl-amino and n-hexylamino stearates as one component of the system and water as the other. The types of lyotropic phase and the range in which they occur were determined as functions of concentration and temperature.