挫折 し た ルイス は ポリマー を 自己 治癒 する ゲル と し て 組み合わせ まし た
Meng Wang1, Fabio Nudelman1, Rebecca R Matthes1
1School of Chemistry, the University of Edinburgh , Joseph Black Building, David Brewster Road, Edinburgh EH9 3FJ, United Kingdom.
Journal of the American Chemical Society
|September 16, 2017
まとめ
この研究は,物質科学のためのマクロ分子挫折ルイスペア (FLP) を導入します. これらのポリマーベースのFLPは,小さな分子を加えるとダイナミックで自己治癒し,熱に反応するゲルを形成します.
科学分野:
- ポリマー化学
- 超分子化学
- 材料科学
背景:
- 挫折したルイス対 (FLP) は,酸塩相互作用を防ぐステリック障害による小分子活性化と触媒作用で知られている.
- 材料化学におけるFLPの応用はほとんど未開発のままである.
研究 の 目的:
- 材料アプリケーションのための完全にマクロ分子FLPシステムを開発する.
- FLPベースのポリマーネットワークの形成と性質を調査する.
主な方法:
- 制御された急性共ポリメリゼーションによるペンダントのステリカルに重荷を負ったルイス酸 (ボロン) またはルイス塩基 (リン) の合成.
- B-およびP-機能化されたポリステリンの相互作用を調査する.
- 小分子クロスリンクナーとしてジチルアゾジカルボキシラートを使用してネットワーク形成を誘導する.
主要な成果:
- B-およびP-機能化されたポリステリンの混合物は,固有の反応を示さなかった.
- ディエチルアゾジカルボキシラートが加えられ,迅速なゲル形成とネットワークの形成につながった.
- 合成されたポリマーゲルは,ダイナミックで,自己治癒性があり,熱に反応し,加工後の再構成能力を有していた.
結論:
- マクロ分子FLPは,機能化されたコポリマーを使用して成功裏に構築できます.
- これらのポリマーベースのFLPは,調整可能な特性を持つ高度なダイナミックな材料の形成を可能にします.
- この研究は,材料科学と工学におけるFLPの応用のための新しい道を開きます.
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