Mesomorphic Properties of Some New Flurinated Liquid Crystals: the 4-n-Alkoxyperfluorobenzoate Series and Trifluoromethylbiphenyl Dervatives

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Abstract
We describe here the synthesis, the mesomorphic and the dielectric properties of two families of flurinated compounds: the 4-alkoxyperflurobenzoic acid 4′hydroxy-4-cyanobiphenyl esters and the 4-trifluroromethyl-4′ substituted biphenyl derivates. Some compounds exhibit only a wide temperature nematic range, while others have a wide temperature smectic A range with or without a nematic mesophase. These compounds are possible additives to mixtures of interest for displays.

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