シーケンスで定義されたポリウレタンマクロマーからのチオルエネネットワーク
Emily A Hoff1, Guilhem X De Hoe2, Christopher M Mulvaney1
1Robert Frederick Smith School of Chemical & Biomolecular Engineering, Cornell University, 120 Olin Hall, Ithaca, New York 14835, United States.
Journal of the American Chemical Society
|March 24, 2020
まとめ
研究者は,バニリンベースのモノマーを使用して,配列定義ポリマーを作成するためのスケーラブルな方法を開発しました. この突破は,グラムスケールの合成を可能にし,交互にリンクされたネットワークの配列依存特性を明らかにします.
科学分野:
- ポリマー化学
- 材料科学
- 有機合成
背景:
- スケーラビリティの制限は,プラスチック,繊維,複合材料におけるシーケンス定義ポリマーアプリケーションを妨げています.
- クロスリンクされたネットワークの特性に対するモノマー配列の影響はほとんど不明である.
研究 の 目的:
- 配列で定義された物質のグラム量を生成するためのスケーラブルな合成経路を開発する.
- モノマー配列が交互に結合したポリマーネットワークの性質に与える影響を調査する.
主な方法:
- 合成のために安価で機能的なバニリン基のモノマーを使用した.
- ポリウレタンオリゴーマーを組み立てるために,連続的還元性アミネーションとカルバメーションを使用した.
- クロマトグラフィの浄化を最小限に抑え,固体/液体の支柱を避けることで,グラムスケールの合成を達成した.
主要な成果:
- 正確に制御されたモノマー配列で3つの配列定義ポリウレタンオリゴーマーを合成しました.
- シーケンスで定義されたオリゴマーのグラムスケールでの生産が実証されています.
- モノメア配列が,交絡材料のネットワークトポロジーとゴム型モジュールを影響することを観察した.
結論:
- シーケンスで定義された熱固体のためのスケーラブルな合成戦略を提示します.
- モノメア配列が材料の性質に与える 重要な影響を強調する.
- パーソナライズされた特性を備えた高度なポリマー材料を設計するための新しい道を開きます.
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