ダイナミックな共振性,発光性メタルポリマーで,温度上昇時にソルからジェルへの移行を経験します

Xavier de Hatten¹, Nicholas Bell, Nataliya Yufa

¹Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.

Journal of the American Chemical Society

|February 17, 2011

まとめ

新しい結合ポリマーは,ほとんどのポリマーとは異なり,加熱するとゲルを形成します. 銅のクロスリンクによって誘発されるこの熱誘発の凝結は,材料の色と光の放射も変化させます.

科学分野:

マテリアルサイエンス材料科学
ポリマー化学のポリマー化学について
超分子化学超分子化学

背景:

ほとんどのゲル形成ポリマーは冷却時にソルからゲルへの移行を経験します.
刺激に反応する材料は,複雑な機能的なシステムの開発に不可欠です.

研究の目的:

銅 ((I)) テンプレートを用いて新しい線形結合ポリマーを合成する.
合成されたポリマーの,ソルからゲルへの移行,熱色化,光発光を含む,温度に依存する振る舞いを調査する.

主な方法:

線形ダイアミンとダイアルデヒドのサブコンポーネントのコンデンサスポリメリゼーションは,銅 (((I)) テンプレート周辺で行われます.
DMSO溶液におけるトリオクチルフォスフィンの補助リガンドの使用.
ポリマー溶液の温度に依存する研究,UV-Vis吸収,放射光譜,およびレオロギーを含む.

主要な成果:

線形結合ポリマーが成功して合成されました.
ポリマー溶液は140°Cまで加熱すると,異常な溶液からジェルへの移行を示した.
この材料は,熱色と温度に依存する光発光を示した.
ソルからジェルへの移行は,熱によって誘発されたCu (I) N (I) N (I) 4) のクロスリンクの形成に起因した.

結論:

合成されたポリマーは,ユニークな熱誘発凝縮機構を示しています.
材料の光学特性 (熱色と光発光) は温度に依存しています.
このポリマーは,複数の刺激 (熱,光,機械的切断) に対して相互に関連した反応を示し,複雑な機能への道を開く.

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