2C11 誘起らせん構造をもつ液晶性ポリパラフェニレン誘導体の合成と性質

抄録

We synthesized novel mono- and di-substituted poly(p-phenylene)s [PPPs] by introducing liquid crystalline (LC) groups into side chains. All polymers showed nematic LC phase. Addition of the newly synthesized binaphthol derivatives, as chiral dopants, to the LC-PPPs gave rise to an oily streak optical texture in polarizing optical microscope, indicating a formation of chiral nematic phase. The cast films composed of the LC-PPPs and chiral dopants showed Cotton effects in not only CD spectra but also circularly polarized fluorescence spectra.