液晶媒体の超分子ポリメリゼーション:多機能コアシェルの柱状液晶のモジュール合成へ

Keiichi Yano¹, Takahiro Hanebuchi¹, Xu-Jie Zhang¹

¹Department of Chemistry and Biotechnology, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-8656 , Japan.

Journal of the American Chemical Society

|May 30, 2019

まとめ

研究者らは,コアシェルの柱状液晶 (LC) を作る新しい方法を開発しました. この新しいLC材料は,電場と磁場の両方で並べられ,一方的なオーダーを可能にします.

科学分野:

超分子化学
材料科学
液体結晶

背景:

超分子ポリメリゼーションは複雑な材料へのモジュール型経路を提供します
柱状液晶 (LC) は独特の自己組み立て特性を持っています.
LC相の方向性を制御することは,デバイスのアプリケーションにとって極めて重要です.

研究の目的:

コアシェル柱状液晶 (LC) の構築のためのモジュラー合成アプローチを拡張する.
電気と磁場の両方によって指向可能な最初のコアシェルの柱状LCを開発する.
ネマティックLC媒質における特定のキラルベンゼントリカルボキシアミド誘導体の自己組み立て行動を調査する.

主な方法:

ネマティック液晶 (LC) ミディアム (4-シアノ-4アヒドロキシペンチロキシビフェニル,5OCB) でキラルベンゼントリボキシアミド誘導体 (^NOディスク_NH*) の超分子ポリメリゼーション.
その結果生じる液晶相の特徴と構造的順序.
電気と磁場に対する材料の反応の調査.

主要な成果:

5OCB (1:3モール比) の^NOディスク_NH*の超分子ポリメリゼーションは,構造的順序増加メソフェーズ移行を誘導した.
113°Cから51°Cの間には,光学的に活性な,六角形に配置されたコアシェルの柱状の幾何学を持つ単一のLC相が形成された.
コア・シェルの柱状のLCは,電場と磁場の両方によって前例のない方向性を示し,片方向の柱状のオーダーリングにつながった.

結論:

モジュール式合成アプローチは,多機能の柱状LCの開発に多用性があります.
電気と磁場の両方によって指向可能な最初のコアシェル柱状LCが成功裏に構築されました.
この新しい材料は,制御されたLCアラインメントを必要とする高度なアプリケーションの可能性を開きます.

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