Abstract
Binary mixtures of homologous nematic N- (p-alkyloxybenzylidene) -p′-acyloxyanilines always show the same eutectic composition of 2 moles of lower melting and 1 mole of higher melting component. The melting point of such eutectics is more depressed with respect to the melting point of the individual components than their clearing point. This results in a marked broadening of the nematic range towards lower temperatures. It is therefore possible to obtain nematic liquid crystaline systems with melting points below 0 °C and mesophases of up to 120 °C.
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