化学的にリサイクル可能なエステル結合ポリプロピレン
Andrew L Kocen1, Shilin Cui1, Ting-Wei Lin1
1Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States.
Journal of the American Chemical Society
|July 6, 2022
まとめ
この研究では,プロピレンとブタディエンの共ポリメリゼーションのための新しい触媒を導入し,ポリオレフィンの化学的リサイクルを可能にします. このプロセスは,従来のポリオレフィンと同様の性質を持つ,リサイクル可能なエステル結合ポリプロピレンを生成します.
科学分野:
- ポリマー化学
- 材料科学
- 持続可能な化学
背景:
- ポリオレフィンは,優れた特性を持つが,リサイクルが限られた商品材料として広く使用されています.
- ポリオレフィンの現在のリサイクル方法は不十分であり,大量廃棄につながっています.
- ポリオレフィンの化学リサイクル経路の開発は,持続可能性にとって極めて重要です.
研究 の 目的:
- プロピレンとブタディエンの同選択共ポリマー化のための新しい触媒を開発する.
- エステル結合ポリプロピレンを生産するための化学的リサイクルプロセスを確立する.
- 新しく合成されたエステル結合ポリプロピレンの再利用性を実証する.
主な方法:
- 新しい触媒を用いたプロピレンとブタディエンの同ポリマー化.
- オレフィンメタテシスによるテレケリックマクロモノマーへの不飽和コポリマー分解.
- マクロモノマーを水素化し,エステル結合ポリプロピレンを形成する.
主要な成果:
- 新しい触媒はプロピレン共聚化において1,4-ブタジエンの挿入に対して高い選択性を示した.
- このプロセスは,線形低密度ポリエチレンに匹敵する特性を有するテレケリックマクロモノマーとエステル結合ポリプロピレンを生成した.
- エステル結合ポリプロピレンは,テレケリックマクロノモナーにデポリメリゼーションされ,化学的リサイクルが可能です.
結論:
- ポリオレフィンの有効な化学的リサイクル経路は,新しい触媒プロセスを通じて確立されています.
- 開発された方法は,不飽和のポリオレフィンを望ましい性質を持つ再生可能な材料に変換します.
- このアプローチは,ポリオレフィン廃棄物の管理に持続可能な代替手段を提供しています.
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