SYNTHESIS AND ELECTROOPTICAL PROPERTIES OF SOME FERROELECTRIC LIQUID-CRYSTALLINE POLYMERS

The synthesis and characterization of several series of ferroelectric side chain polymers were presented. Differential scanning calorimetry, optical polarizing microscopy and X-ray diffraction measurement were used to determine their thermal transitions and analyze their anisotro pic textures. The influence of polymer backbones, flexible spacers, me sogenic cores as well as chiral end groups on the mesomorphic properti es of the polymers was discussed. Furthermore, the dielectric relaxati on properties of the obtained polymers were also evaluated.