高分子安定化ブルー相における光誘起Slippery界面形成と駆動電圧低減効果

抄録

Driving voltage and response time of the polymer stabilized blue phase (PSBP) depend on composition and structure of its polymer networks. We succeeded in reducing driving voltage of PSBP by using photosensitive monomer (11-[4-(4-butylphenylazo)phenoxy]undecyl methacrylate) for polymer stabilization. Azobenzene changes its state from trans to cis by UV irradiation. During UV irradiation, cis-typed azobenzene disorders the orientation of liquid crystals around the polymer networks. Local melting will occur and it is expected to generate isotropic region near the boundary of liquid crystals and polymer networks, and hence liquid crystal molecules respond to the external field easily on the liquid surface,so that driving voltage is reduced. We studied its electro-optical properties and confirmed this effect.