Temperature-concentration behaviour of the order parameter in the nematic phases of a lyotropic liquid crystal
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چکیده
2014 The temperature variations of the order parameter invariants are measured in the uniaxial and biaxial nematic phases of different mixtures of potassium laurate, 1-decanoL D2O. They show that the uniaxial to biaxial nematic phase transitions are second-order and mean-field, including in the case of the reentrant concentration, which gives the sequence discotic-biaxial-discotic of nematic phases when increasing temperature. J. Physique 46 (1985) 589-594 AVRIL 1985,
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