抄録
We synthesized ferroelectric liquid crystalline (FLC) polythienylene (PT) and poly(ρ -phenylene) (PPP) derivatives by introducing fluorine - containing chiral LC substituents into side chain of polymers to achieve quick response for electric field. Measurements of differential scanning calorimetry (DSC), polarizing optical microscope (POM), and X-ray diffraction (XRD) indicated that the polymers have chiral smectic C (Sc*) phase, that is indispensable for generation of FLC. These polymers showed drastic increase of dielectric constant in the Sc* temperature range, which is typical FLC behavior based on Curie-Weiss rule. Response times of the polymers were evaluated to be ca. one second, that is 20-30 times faster than those of ordinary LC polymers.
