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Liquid Crystals
Year: 2008  |  Volume: 35  |  Issue: 5  |  Page No.: 625 - 632

New ferroelectric liquid crystals for high-performance optical devices

Roberta Cassano, Roman Dabrowski, Jerzy Dziaduszek, Sonia Trombino, Francesca Iemma, Fiore Pasquale Nicoletta, Giovanni De Filpo and Nevio Picci    

Abstract: The synthesis, characterisation, helical pitch and electro-optical response of new ferroelectric liquid crystals, 4’-(ω-acryloxyalkoxy)-, 4’-(ω-alkanoyloxyalkoxy)- or 4’-(ω-perfluoroalkanoyloxy)alkoxybiphenyl-4-yl (S)-4-(1-octyloxy)benzoates, bearing either polymerisable or non-polymerisable terminal groups, are described. The synthesised liquid crystals exhibit both a chiral smectic C phase and a chiral nematic phase. The helical pitch and electro-optical properties of the new compounds were determined as a function of temperature.

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