抄録
Novel main-chain liquid crystal polyurethanes were synthesized by the polyaddition of diols and diisocyanates. Their metal-complexed family was also obtained by the reaction of the polyurethanes and metal ions. The polyurethane/metal complexes exhibited nematic or smectic A phases, characterized by the X-ray diffraction pattern consisting of the inner sharp reflections and the outer broad reflection. The liquidcrystalline polyurethane/copper(II) complex revealed a higher order parameter (0.67) when compared to the liquid-crystalline polyurethane (order parameter=0.5). The copolyurethane/copper(II) complexes obtained from nonmesomorphic copolyurethanes formed a metal ion-dispered nematic phase with a schlieren texture.
