CO2/ブタディーネ由来乳素によるエチレンの共ポリメリゼーションによる分散主鎖機能化されたポリエチレンへのアクセス
Shan Tang1, Yajun Zhao1, Kyoko Nozaki1
1Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo 7-3-1- Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Journal of the American Chemical Society
|October 20, 2021
まとめ
研究者は新しい共聚合法を使用して,二酸化炭素 (CO2) をポリエチレンに組み込むことに成功した. この突破はCO2,エチレン,ブタディエンの 持続可能なポリエチレン材料への扉を開きます
科学分野:
- ポリマー化学
- 持続可能な材料科学
- 有機合成
背景:
- 二酸化炭素 (CO2) は,ポリカーボネート,ポリウレア,ポリウレタンなどのポリマーを合成するための持続可能なモノマーです.
- 広く使用されているポリエチレン材料にCO2を組み込むことは困難であり,持続可能なポリエチレンベースの製品の開発を制限しています.
研究 の 目的:
- 二酸化炭素 (CO2) をポリエチレンに組み込むための汎用的な方法を開発する.
- エチレン,CO2,および1,3-ブタディエンを用いて新しい主鎖機能化されたポリエチレンを合成する.
主な方法:
- エチレンとCO2 /ブタジーン由来ラクトン (3-エチリデン-6-ビニルテトラヒドロ-2H-ピラン-2-オン,EVP) の共聚化
- パラジウム触媒による協調/挿入および根性共ポリマー化という2つの異なる共ポリマー化戦略を使用した.
- マイケル添加またはアミノリシスによる生成ポリエチレン鎖の機能化.
主要な成果:
- メインチェーン機能化されたポリエチレンの2種類の合成に成功した.
- パラジウム触媒は不飽和ラクトンを含むポリエチレンを生成し,急性ポリメリゼーションはバイサイクルラクトンを含むポリエチレンを生成した.
- 合成材料の汎用性を示し,ポリエチレンチェーンを成功裏に改造した.
結論:
- エチレン,CO2,および1,3-ブタディーエンから機能化されたポリエチレンを生成するための非常に多用途のコポリメリゼーションプロトコルを開発した.
- この方法は,持続可能な材料開発における潜在的な応用を持つ多種多様なポリエチレン材料へのアクセスを提供します.
- ポリエチレンにCO2を組み込む以前の制限を克服し,より持続可能なポリマー生産への道を切り開きます.
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