強力なドナー/受容体ベースの結合ポリマーとそれらの配列工学の精密合成のためのユニバーサル・スズキ・ミヤウラ触媒-転送ポリメリゼーション
Jaeho Lee1, Hwangseok Kim1, Hyunwoo Park1
1Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
Journal of the American Chemical Society
|July 15, 2021
まとめ
この研究では,電子が豊富で,電子が欠けているモノマーを含む多様なポリマーを合成するためのスズキ-ミヤウラ触媒移転ポリメリゼーション (SCTP) が導入されています. 新しい方法は,ポリマーとブロックコポリマーを制御した合成を可能にします.
科学分野:
- ポリマー化学
- 有機合成
- 材料科学
背景:
- 触媒移転ポリメリゼーションは生命特性を有しますが,狭いモノマー範囲によって制限されています.
- 先進的なポリマー材料には,多用途のポリメリゼーション技術の開発が不可欠です.
研究 の 目的:
- 広範囲のモノマーを持つ高効率のスズキ・ミヤウラ触媒移転ポリメリゼーション (SCTP) を開発する.
- 多種多様なポリマーとブロックコポリマーを電子が豊富で,電子が欠けているモノマーから制御された合成を可能にします.
- 結果のコポリマーにおける電子特性の調節性を実証する.
主な方法:
- ボロナートモノメアの合理的な設計と,商業的に利用可能な Buchwald RuPhos と SPhos Pd G3 の前駆媒の利用.
- 3,4-プロピレンダイオキシチオフェン (ProDOT),ベンゾトリアゾール (BTz),キノキシリン (QX) のようなモノマーに対するポリメリゼーションの最適化.
- 鎖成長メカニズムとポリマー構造を確認するために,1H NMRとMALDI-TOFスペクトロメトリを用いた特徴付け.
主要な成果:
- 様々な (ヘテロ) アレンの制御されたポリメリゼーションを達成し,狭い分散度 (Đ < 1.29) と高い収量 (> 85%) を得ている.
- HOMOとバンドギャップのエネルギーを調節したドナー-受容体の統計的共ポリメリゼーションが実証された.
- 順次添加とワンショット方法を用いて,よく定義されたドナー-受容体と受容体-受容体ブロックコポリマーを成功して合成した.
結論:
- SCTPは,多種多様なポリマーと複雑なアーキテクチャを合成するための多用途かつ効率的な方法を提供します.
- 開発された方法は,分子量,分散,電子特性を正確に制御することができます.
- この進歩は様々な用途の 機能的なポリマーを作るための 新たな道を開きます
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