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Liquid Crystals Volume 35, 2008 - Issue 5
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Original Articles

New ferroelectric liquid crystals for high‐performance optical devices

Roberta Cassano Department of Pharmaceutical Sciences, University of Calabria, Rende (CS), ItalyCorrespondence[email protected]
,
Roman Da˛browski Institute of Chemistry, Military University of Technology, Warsaw, Poland
,
Jerzy Dziaduszek Institute of Chemistry, Military University of Technology, Warsaw, Poland
,
Sonia Trombino Department of Pharmaceutical Sciences, University of Calabria, Rende (CS), Italy
,
Francesca Iemma Department of Pharmaceutical Sciences, University of Calabria, Rende (CS), Italy
,
Fiore Pasquale Nicoletta Department of Pharmaceutical Sciences, University of Calabria, Rende (CS), Italy
,
Giovanni De Filpo Department of Chemistry, University of Calabria, Rende (CS), Italy
&
Nevio Picci Department of Pharmaceutical Sciences, University of Calabria, Rende (CS), Italy
 show all
Pages 625-632 | Received 25 Jan 2008, Accepted 12 Mar 2008, Published online: 19 Jun 2008
 
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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.

Acknowledgements

The present work was supported by Sampa Project, Calabria University Funds, and PRIN 2007.

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