Fabrication of nanotubes using self-assembry of liquid crystalline molecules

利用液晶分子自组装制造纳米管

• 批准号: 13640571
• 负责人: KISHIKAWA Keiki
• 金额: $ 2.11万
• 依托单位: Chiba University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13640571/
• 关键词: supramolecule; liquid crystal; nanoporous; aminocompounds; columnar phase; nanotechnology; polymer; フラーレン; 半円盤状化合物

The purpose of this study is to synthesize nanoporous polymers as follows. 1) After generation of hexagonal columnar liquid crystal phases of core-compounds (polyalcohols or polyaminocompounds) chemically connected with reactive moieties, the materials are polymerized to give the highly ordered polymers. 2) The core-compounds are removed from the polymers to give the nanoporous polymers. In the first year, hexahydroxytriphenylene was used as the core-compound, and it was connected using ester junction with double-bond moieties. However, the compounds synthesized were unstable and the monomer compounds could not be obtained. In the second year, polyaminocompounds were used for the core-compounds and were interacted with carboxylic acids possessing a double bond (3,4,5-trialkyloxycinnamic acid, TACA). These supramolecular compounds exhibited their columnar liquid crystal phases. TACA generated 1:2-supramolecules with dipyridyl, dipyridylethylene, and alkylenediamine which exhibited the columnar liquid crystal phases. The supramolecular compounds in the liquid crystal phases were photoirradiated by a high pressure mercury lamp. However, the polymers were not obtained. Now, we are trying photopolymerization of other carboxylic acids which have more reactive double-bonds to get the nanoporous polymers.

本研究的目的是合成如下纳米多孔聚合物。1)在生成与反应性部分化学连接的核心化合物（多元醇或聚氨基化合物）的六方柱液晶相之后，材料聚合以得到高度有序的聚合物。2)从聚合物中除去核化合物以得到纳米多孔聚合物。在第一年，六羟基苯并菲被用作核心化合物，它是通过酯键与双键部分连接。然而，合成的化合物是不稳定的，并且不能得到单体化合物。在第二年，多氨基化合物被用于核心化合物，并与具有双键的羧酸（3，4，5-三烷氧基肉桂酸，TACA）相互作用。这些超分子化合物显示出它们的柱状液晶相。TACA与联吡啶、联吡啶基乙烯和亚烷基二胺形成1：2超分子，其表现出柱状液晶相。用高压汞灯照射液晶相的超分子化合物。然而，没有获得聚合物。现在，我们正在尝试光聚合具有更多的活性双键的其他羧酸，以获得纳米多孔聚合物。

项目成果

Shigeo Kohmoto: "Highly peri- and stereoselective intramolecular photocycloaddition and cyclisation of N-(1-naphthylethyl)prop-2-enamides"Journal of Chemical Society, Perkin Trans. 1. 17. 2082-2088 (2001)

Shigeo Kohmoto：“N-(1-萘乙基)丙-2-烯酰胺的高度周向和立体选择性分子内光环加成和环化”化学学会杂志，Perkin Trans。

Seiji Tanaka: "A convenient method of generation of nitrile oxides by iodosylbenzene and its reaction"Nippon Kagaku Kaishi. 3. 471-473 (2002)

Seiji Tanaka：“一种由碘酰苯及其反应生成腈氧化物的简便方法”Nippon Kagaku Kaishi。

Shigeo Kohmoto: "Enantioselective Intramolecular Aromatic [4+4] Photocycloaddition in Crystalline State: Parameters for Reactivity"Organic Letters. 3・26. 4153-4155 (2001)

Shigeo Kohmoto：“结晶状态下的对映选择性分子内芳​​香族[4+4]光环加成：反应性参数”有机快报3・26（2001）。

Keiki Kishikawa: "Liquid-Crystalline Compounds Consisting of Two Mesogenic Cores in Parallel Conformation"Chemistry of Materials. 13・8. 2468-2471 (2001)

岸川敬树：“由两个平行构象的介晶核组成的液晶化合物”13・8 2468-2471（2001）。

S.Holger Eichhorn: "The Interplay of Bent-Shape, Lateral Dipole and Chirality in Thiophene Based Di-, Tri-, and Tetracatenar Liquid Crystals"Journal of the American Chemical Society. 124・43. 12742-127451 (2002)

S. Holger Eichhorn：“基于噻吩的二链、三链和四链液晶中弯曲形状、横向偶极子和手性的相互作用”美国化学会杂志 124・43（2002 年）。