Abstract
Abstract New ferroelectric liquid crystals with a fluorinated asymmetric frame were synthesized utilizing optically active S-(-)-2-fluoroalkanols prepared from R-(+)-1,2-epoxyalkanes with pyridinium poly(hydrogen fluoride), and their mesomorphic and physical properties (phase behavior, spontaneous polarization, response time) were studied. The biphenyl-phenyl derivatives of three-ring systems exhibited enantiotropic chiral smectic C phase in a broad temperature range (108°C-185°C). The phenyl benzoate of two-ring systems exhibited chiral smectic C phase at temperature relatively close to room temperature, and were found to possess the spontaneous polarization larger than 35 nC/cm2.
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