単純なフォスフィン・リガンド交換反応による金属サイクル結合のスターポリマーの超分子変換
Wei Zheng1, Wei Wang1, Shu-Ting Jiang1
1Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China.
Journal of the American Chemical Society
|November 30, 2018
まとめ
研究者は 金属-リガンド化学を用いて ダイナミックなスターポリマーを作りました この超分子変換戦略により ポリマーの構造と性質が 逆転し 新しいスマート素材への道を開くことができます
科学分野:
- ポリマー化学
- 超分子化学
- 材料科学
背景:
- バイオマクロモリキュアの 超分子変換は 生物学的機能を駆動し 生物模倣の ダイナミックなシステムにインスピレーションを与えます
- 超分子戦略による人工マクロ分子特性を正確に制御することは,ポリマー化学における重要な課題です.
研究 の 目的:
- 調整可能な特性を有するダイナミックなポリマー材料の構築のための新しい方法を開発する.
- 超分子化学を用いた 星型ポリマー構造の 簡易な変換を証明する
主な方法:
- 調整による自己組み立てと組み立て後のリング開きポリメリゼーションを組み合わせて,六角形の金属サイクルのコアを持つスターポリマーを合成した.
- トランス・プラチナ・アセチリド分子は,金属サイクルの基板に変換部位として組み込まれました.
- メタラサイクルとスターポリマー構造の制御された変換を誘導するために,フォスフィンリガンド交換反応が使用されました.
主要な成果:
- よく定義された六角形の金属サイクルのコアを持つ6本の腕の星ポリマーが成功して合成されました.
- メタルサイクルのエスカフォードは,リガンド交換によって引き起こす連続した六角形-ロムボ形-六角形変形を経験した.
- この超分子変換は,スターポリマーの構造と性質に相応しい変化をもたらした.
- 星と線形ポリマーアーキテクチャの間の可逆変換が達成されました.
結論:
- 金属-リガンド調整とリガンド交換反応を使用して,ダイナミックなスターポリマーシステムが成功しました.
- この研究は,調節可能な性質を持つ新しいダイナミックなポリマー材料を作成するための有望なアプローチを示しています.
- この戦略は,ポリマー構造と超分子変換を容易に制御します.
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