Abstract
Abstract A partial phase diagram of the potassium N-tetradecanoyl-L-alaninate/decanol/water (+10 per cent CsCI) system has been charted using polarizing microscopy, laser diffraction, and NMR spectroscopy. At low amphiphile concentrations, a chiral nematic ChD phase with disc-like micelles occurs and at higher concentrations there occur a chiral nematic, ChC phase with cylindrical micelles and a chiral version of a dimensionally-ordered (probably rectangular or hexagonal) phase. Between the Chc phase and the genuine isotropic liquid there is a chiral isotropic phase which appears to be a micellar analogue of a thermotropic blue phase. This isotropic chiral Ic phase showed flow birefringence.
Published Version
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