SYNTHESIS AND CHARACTERIZATION OF PHENYL ACETYLENE DERIVATIVES INCORPORATING A PERFLUOROALKYL GROUP, AND THE APPLICATION TO ELECTRONIC MATERIALS

含全氟烷基苯乙炔衍生物的合成、表征及其在电子材料中的应用

• 批准号: 13640580
• 负责人: TAKENAKA Shunsuke
• 金额: $ 2.24万
• 依托单位: Yamaguchi 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-13640580/
• 关键词: PERFULURO CARBON CHAIN; TRIFLUOROMETHYL GROUP; LIQUID CRYSTALS; AGGREGATES; ORGANIC SYNTHESIS; PHOTO REACTION; SMECTIC PHASE; FLUOROPHILIC EFFECT; ペルフロロ化合物; アセチレン化合物; 液晶材料; 有機電子材料; 光重合; 合成

This project aimed to develop new liquid crystal materials incorporationg a perfuloroalkyl chain and a triple bond, characterization of the liquid crystal phases, and also photo reaction of the liquid crystal materials. In addition, we also aimed to investigate the aggregates formed by these liquid crystal materials in organic solvents.We successfully prepared 10 kinds of new liquid crystals, and characterized the layer structure of smectic phases by a small angle X-ray diffraction method, and found that the fluorophilic interaction between the perfuloroalkyl chains plays a predominat role in determining the thermal properties and the molecular arrangement in the smectic A, and B phases. Although the photo reaction of the liquid crystals incorporating a **ple bond was examined by various conditions, the materials examined in this work were very stable and did not give any reaction products.The liquid crystal materials prepared in this work were clarified to give aggregates in organic solvents. The size of the aggregates are dependent on the condition of the preparation, and the size of the aggregates was determined to be ca. 0.5 -1.0μm in organic solvents. Interstingly, the particles reveal liquid crystal properties, even if the concentration of liquid crystals is less than 10 mol%.

本项目旨在开发具有全氟烷基链和三键的新型液晶材料，表征液晶相，以及液晶材料的光反应。此外，我们还对这些液晶材料在有机溶剂中形成的聚集体进行了研究，成功制备了10种新型液晶，并用小角X射线衍射方法表征了近晶相的层状结构，发现全氟烷基链之间的亲氟相互作用在决定近晶相的热性质和分子排列中起着主导作用A相和B相。虽然在各种条件下研究了含双键液晶的光反应，但本工作中所研究的材料非常稳定，没有产生任何反应产物。聚集体的大小取决于制备的条件，并且聚集体的大小被确定为约100 μ m。0.5在有机溶剂中为-1.0 UNFm。有趣的是，即使液晶的浓度小于10摩尔%，颗粒也显示出液晶性质。

项目成果

Takeyasu Tasaka, Vladimir F.Petrov, Hiroaki Okamoto, Yuki, Morita, Kazuyuki Suetake, Shunsuke Takenaka: "Liquid Crystalline Properties of Dissymmetric Molecules Part IX : The Effects of Terminal NitroGroup on Thermal Properties of Smectic A Phase in 4-Nit

Takeyasu Tasaka、Vladimir F.Petrov、Hiroaki Okamoto、Yuki、Morita、Kazuyuki Suetake、Shunsuke Takenaka：“不对称分子的液晶特性第九部分：末端硝基对 4-Nit 中近晶 A 相热特性的影响

Shunsuke Takenaka, Kazuhide Ota, Yuki Morita, Hiroaki Okamoto: "Smectic Phases Exihibited by Dissymmetric Liquid Crystals : Mesomorphic Properties of Liquid Crystals Having a Lateral Long Alkoxy Group"Ferroelectrics. 276. 73-82 (2002)

Shunsuke Takenaka、Kazuhide Ota、Yuki Morita、Hiroaki Okamoto：“不对称液晶表现出的近晶相：具有横向长烷氧基的液晶的介晶性质”铁电体。

Takeyasu Tasaka, Shunsuke Takenaka, Koji Kabu, Yuki Morita, Hiroaki Okamoto: "Smectic Phase Exihibited by Dissymmetric Liquid Crystals : Effect of a Terminal Fluoromethyl Group Mesomorphic Properties"Ferroelectrics. 276. 83-92 (2002)

Takeyasu Tasaka、Shunsuke Takenaka、Koji Kabu、Yuki Morita、Hiroaki Okamoto：“不对称液晶表现出的近晶相：末端氟甲基介晶性质的影响”铁电体。