Pd複合体の促進による機能化されたアルファ・オメガ・ダイエンのサイクロポリメリゼーションとエチレンとの共ポリメリゼーションにより,周期的な重複単位を持つポリマーが得られる
Sehoon Park1, Daisuke Takeuchi, Kohtaro Osakada
1Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan.
Journal of the American Chemical Society
|March 16, 2006
まとめ
Pd(II) -ダイミン触媒は,イソプロピリデンダイアリルマロナートのサイクロポリメリゼーションを可能にし,トランス-1,2-非置換サイクロペンタン群を持つポリマーを生成します. このプロセスは,特にC2対称リガンドでは,高度に規制された戦術性とエチレンとの共聚合を可能にします.
科学分野:
- ポリマー化学のポリマー化学について
- オーガノメタリック触媒.
背景:
- パラジウム (II) - ダイミン複合体は,様々なポリメリゼーション反応の触媒として知られています.
- サイクロポリメリゼーションは,背骨にサイクル単位を持つポリマーへの経路を提供します.
研究 の 目的:
- Pd(II) -ダイミン触媒を用いたイソプロピリデンダイアリルマロナートのサイクロポリメリゼーションを調査する.
- ポリマーの戦術性に対するリガンド対称性の効果を探求する.
- イソプロピリデンダイアリルマロナートのエチレンとの共ポリマー化を調べる.
主な方法:
- パラジウム ((II) -ダイミン複合体を用いた触媒サイクロポリメリゼーション.
- C2対称リガンドによる制御された戦術性を持つポリマーの合成.
- コポリマーを組み込むためのエチレン大気のポリメリゼーション.
主要な成果:
- イソプロピリデネ・ダイアリルマロナートのサイクロポリメリゼーションが,トランス-1,2-非置換サイクロペンタン基を持つポリマーに成功しました.
- C2対称リガンドを持つPd複合体を用いて高度に調節された戦術性を達成した.
- エチレン大気中のポリメリゼーションを経て,ポリエチレンに最大42%のコモノマーを組み込んでいます.
結論:
- Pd(II) -ダイミン触媒は,イソプロピリデンダイアリルマロナテのサイクロポリメリゼーションに有効です.
- C2対称リガンドは,ポリマーの戦術性を制御するために重要である.
- 記述された方法は,調節可能な性質を持つ新しいコポリマーの合成を可能にします.
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