Study on Synthesis and Orientational Behavior in Side Chain Liquid Crystal Polymers with Self-Organizing Properties

自组织侧链液晶聚合物的合成及取向行为研究

• 批准号: 05650929
• 负责人: IIMURA Kazuyoshi
• 金额: $ 1.41万
• 依托单位: Science University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650929/
• 关键词: Self-Organization; Liquid Crystal; Side Chain Polymer; Orientational Behavior; Ionic Interaction; Hydrogen Bonding; 側鎖型液晶高分子; イオン性原子団; 液晶形成能; 垂直配向構造; 配向制御

The use of relatively strong interactions such as ionic and hydrogen bondings had great potential in the design of the functional side chain liquid crystal polymers.In low-molecular-weight and polymeric liquid crystal systems, ionic groups acted effectively in producing smectic phases with enhanced thermal stability, due to the formation of ionic aggregation by Coulombic forces. The side chain liquid crystal polymers with a ionic polymer backbone formed easily a monodomain type of a liquid crystalline orientation. Furthermore, a liquid crystalline polymeric ion complexes in which ionic groups are attached to a polyion were prepared. The liquid crystalline ion complexes had the high mobility in liquid crystalline phases. However, the liquid crystalline orientation maintained at the glass state.The formation of hydrogen bondings led to the enhancement of liquid crystallinity in the side chain liquid crystal polymer. In especial, the hydrogen bondings between identical units acted, forming a smectic phase and enhanced the thermal stability.

在低分子量液晶和高分子液晶体系中，离子基团通过库仑力形成离子聚集体，有效地形成了具有较高热稳定性的近晶相。具有离子聚合物主链的侧链液晶聚合物容易形成单畴型液晶取向。此外，制备了其中离子基团连接到聚离子的液晶聚合物离子络合物。液晶离子复合物在液晶相中具有高的迁移率。而侧链液晶聚合物的液晶取向保持在玻璃态，氢键的形成导致了侧链液晶聚合物的液晶性增强。特别是单元间的氢键作用，形成近晶相，提高了热稳定性。

项目成果

Seiji Ujiie: "Effect of Ionic Groups for Liquid Crystal Formation in Ionic Side Chain Liquid Crystal Polymers" Rep.Prog.Polym.Phys.Jpn.37. 153-156 (1994)

Seiji Ujiie：“离子基团对离子侧链液晶聚合物中液晶形成的影响”Rep.Prog.Polym.Phys.Jpn.37。

Seiji Ujiie and Kazuyoshi Iimura: "Effect of Ionic Groups for Liquid Crystal Formation in Ionic Side Chain Liquid Crystal Polymers" Reports on Progress in Polymer Physics in Japan. Vol.37. 153-156 (1994)

Seiji Ujiie 和 Kazuyoshi Iimura：《Effect of Ionic Group for Liquid Crystal Formation in Ionic Side Chain Liquid Crystal Polymers》报道日本高分子物理学进展。

Seiji Ujiie: "Thermal and Liquid Crystalline Properties of Ion Complex Composed of Polycation with Mesogenic Groups" Rep.Prog.Polym.Phys.Jpn.38in press. (1995)

Seiji Ujiie：“由具有介晶基团的聚阳离子组成的离子络合物的热和液晶性质”Rep.Prog.Polym.Phys.Jpn.38in press。

Seiji Ujiie: "Phase Transitions of Ion Complex Type of Side Chain Liquid Crystal Polymers" Rep.Prog.Polym.Phys.Jpn.37. 151-152 (1994)

Seiji Ujiie：“侧链液晶聚合物的离子复合型的相变”Rep.Prog.Polym.Phys.Jpn.37。

Seiji Ujiie and Kazuyoshi Iimura: "Phase Transitions of Ion Complex Type of Side Chain Liquid Crystal Polymers" Reports on Progress in Polymer Physics in Japan. Vol.37. 151-152 (1994)

Seiji Ujiie 和 Kazuyoshi Iimura：《离子络合物型侧链液晶聚合物的相变》报道日本高分子物理进展。