空気に安定したパラジウムを使用した快活ポリメリゼーションおよびヘリックスセンスの選択的ポリメリゼーション (II)
Jia-Hong Chu1, Xun-Hui Xu1, Shu-Ming Kang1
1Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Catalytic Materials and Reaction Engineering , Hefei University of Technology , 193 Tunxi Road , Hefei 230009 , Anhui Province , People's Republic of China.
Journal of the American Chemical Society
|November 30, 2018
まとめ
空気に安定したパラジウム (II) 触媒は,ダイアゾアセテート単体素の迅速な生体ポリメリゼーションを可能にします. この方法は制御された分子量を持つポリマーを生成し,ブロックコポリマー合成とキラルポリマー形成を可能にします.
科学分野:
- ポリマー化学
- 有機金属化学
- カタリシス
背景:
- 制御されたポリメリゼーション技術は,特定の性質を持つポリマーを合成するために不可欠です.
- ディアゾアセテートモノメアは独特のポリメリゼーション経路を提供しますが,しばしば特殊な条件が必要です.
- 効率的で多用途な触媒の開発は,ポリマー科学における重要な課題です.
研究 の 目的:
- ダイアゾアセタートポリメリゼーションのための空気安定のパラジアム (II) 触媒の設計と合成.
- これらの触媒によって開始されたポリメリゼーションの生 / 制御された性質を調査する.
- この触媒システムを用いてブロックコポリマーとキラルポリマーの合成を研究する.
主な方法:
- バイデント酸フォスフィンリガンドを含むパラジウム (II) 触媒の合成.
- 温和で空気安定した条件下で,様々なダイアゾアセテート単体のためのポリメリゼーションの開始.
- 分子重量,分子重量分布,光学活性を含むポリマーの特性.
主要な成果:
- 触媒は迅速かつ生きたポリメリゼーションを成功裏に開始し,高収量ポリマーを生成しました.
- 制御された分子量 (Mn) と狭い分子量分布 (Mw/Mn) が達成されました.
- 生体ポリメリゼーションにより,自己組立性のあるブロックコポリマーと,高い光学活性を持つキラルポリマーが容易に合成された.
結論:
- 空気安定のパラジウム (II) 触媒は,ダイアゾアセタートの迅速な生体ポリメリゼーションのための堅固なプラットフォームを提供します.
- この方法は,ブロックコポリマーとステレオレギュラーヘリクアルポリマーを含むポリマーアーキテクチャの正確な制御を提供します.
- この触媒システムは,利用可能な機能的ポリマーとキラル材料の範囲を広げています.
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