硫黄とアクリラートのアニオン混合共聚:高性能硫黄ベースのポリマーの合成のための戦略
Hongjun Yang1, Jinfeng Huang1, Yiye Song1
1Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, P. R. China.
Journal of the American Chemical Society
|June 22, 2023
まとめ
研究者らは,アニオンハイブリッドコポリメリゼーションを使用して硫黄ベースのコポリマーを作成するための新しい方法を開発しました. これらの新しいポリマーには 印象的な機械的強度と 室温で自己回復能力があります
科学分野:
- ポリマー化学
- 材料科学
- 硫黄化学
背景:
- ビニルモノマーとの元素硫黄 (S8) コポリメリゼーションは,新しいポリマー材料の開発に不可欠です.
- 硫黄ベースのポリマーの効率的で温和なポリメリゼーション技術の開発は依然として大きな課題です.
研究 の 目的:
- 素硫黄 (S8) とアクリラート単体との最初のアニオン混合共聚を報告する.
- 温和な条件下で高性能硫黄基コポリマーを合成する.
- 機械的強度や自己治癒能力を含む結果のコポリマーの性質を調査する.
主な方法:
- 素硫黄 (S8) を 25 °C でアクリラートモノマーでアニオン混合共聚する.
- 多硫化物セグメントの長さを制御するために連鎖転送反応を利用する.
- 処理能力と自己治癒性を高めるため,三次性アミド群を導入する.
主要な成果:
- 短いポリスルフィードセグメント (1〜4個の硫黄原子) のコポリマーの合成に成功した.
- ダイアクリlateとS8のクロスリンクコポリマーは優れた機械的特性 (10.7MPaの張力,22%の破裂張力) を示した.
- 三次性アミド群を持つ共ポリマーには,室温での再処理性と自己治癒性がある.
結論:
- アニオン混合コポリメリゼーションは,高性能の硫黄ベースのコポリマーを合成するための簡単な戦略を提供します.
- 開発されたコポリマーには,高度な材料の用途に適した望ましい機械的および自己修復特性があります.
- 軽度の反応条件と室温での処理能力は,このアプローチの実用的な可能性を強調しています.
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