誘導効果補助連鎖成長ポリコンデンサ. 低ポリ分散度を持つパラからメタ置換された芳香ポリアミドへの合成開発
Ryuji Sugi1, Akihiro Yokoyama, Taniyuki Furuyama
1Department of Applied Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan.
Journal of the American Chemical Society
|July 21, 2005
まとめ
研究者らは,メタ置換モノマーのための新しいチェーン成長ポリコンデンサ法を開発し,よく定義されたポリマーと狭い分子量分布を持つブロックコポリマーの制御された合成を可能にしました.
科学分野:
- ポリマー化学のポリマー化学について
- オーガニック・シンセシス オーガニック・シンセシス
背景:
- メタ置換モノマーに対する制御されたポリメリゼーションの方法の開発は困難です.
- 既存の方法は,しばしば望ましくない自己凝縮につながります.
研究 の 目的:
- よく定義された凝縮ポリマー合成をパラからメタ置換モノマーに拡張する.
- m-(オクティラミノ) ベンゾ酸エステルの連鎖成長ポリコンデンサを調査する.
主な方法:
- リチウムヘクサメチルジサイラジデ (LiHMDS) のような強い塩基を用いたm-(オクティラミノ) ベンゾ酸エステルのポリコンデンサーションを調査しました.
- フェニルベンゾ酸,フェニル4メチルベンゾ酸などのイニシアターを使用した.
- ブロックコポリマー合成のために使用されたモノマー添加法.
主要な成果:
- エチルエステルモノマー (1b) のポリメリゼーションは,自己凝縮なしにチェーンポリメリゼーションを経て進行した.
- ポリマーの分子量 (Mn) は,モノマー対イニシアター比率で線形的に増加した.
- 狭い分子量分布 (Mw/Mn) が達成されました.
- N-アルキル化されたポリ (m-ベンザミド) とポリ (p-ベンザミド) のブロック共ポリマーが成功して合成されました.
結論:
- メタ置換ベンザミドポリマーの制御された鎖成長ポリコンデンサを達成しました.
- よく定義されたポリマーとブロックコポリマーの合成を実証した.
- 開発された方法は,高度なポリマーアーキテクチャを作成するための経路を提供します.
関連する概念動画
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