Abstract
The flow properties of the mesomorphic melts (smectic liquid crystals) of ammonium salts of higher fatty acids are measured. It is found characteristic for these mesomorphic melts that they generally show non-Newtonian flow and also that they show anomalous viscosity–temperature curves which have a sharp maximum near the transition temperature of anisotropic melt into isotropic liquid, so far as the applied shear rate is not so high. Such characteristic behaviour is discussed from the viewpoint of the translational and rotational molecular motions in the mesomorphic melts under given experimental conditions.
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