トポロジカル・アイソメリック・ポリマー・ネットワークの合成のための無痕トポロジカル・モディファイヤーとしてのレジング・グループ
Yuwei Gu1, Dominik Schauenburg2, Jeffrey W Bode2
1Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States.
Journal of the American Chemical Society
|October 19, 2018
まとめ
この研究では,ポリマーネットワークの構造を正確に制御するために, 無痕トポロジカル・モディフィケーションを導入します. この新しい方法は,自己組み立てのテンプレートを用いて,同一の化学組成が異なるポリマーネットワークのトポロジーを作成します.
科学分野:
- ポリマー化学
- 材料科学
- 超分子化学
背景:
- ポリマーネットワークの化学的およびトポロジカル構造に対する正方形の制御は困難です.
- 新しいネットワークトポロジーの既存の方法は,しばしば,超分子組成を通して,望ましくない化学成分を組み込む.
研究 の 目的:
- テンプレートコンポーネントを組み込まないポリマーネットワークトポロジーを制御する方法を開発する.
- 精密なネットワーク設計のために"トレースレス トポロジカル・モディファイヤー"を導入する.
主な方法:
- 脱落グループに自己組み立てモチーフを組み込むことにより,ネットワークの前駆者にトポロジーをプログラムします.
- ネットワーク形成のためにアシルトリフローロボラート (KAT) 結合を使用する.
- ポリエチレングリコール (PEG) 基のスターポリマーを使用し,鎖末端の水嫌性を変化させ,直接自己組み立てを行う.
主要な成果:
- 組み込まれていないテンプレートとして自己組み立て構造を使用したポリマーネットワークトポロジーに対する制御が実証されています.
- 化学組成は同じだが物理的性質は異なっている,トポロジ的に同位体であるPEGゲルを成功裏に製造した.
- トポロジーのトポロジカル・モディフィケーションによるポリマーネットワークの特性への影響を示した.
結論:
- トロポロジカル・モディフィケーションは トロポロジーを制御したポリマーネットワークを設計するための新しい戦略を提供します.
- このアプローチは,ネットワークアーキテクチャを操作することによって,調整可能な性質を持つ材料の作成を可能にします.
- トポロジカル構造がポリマーネットワークのマクロスコーピック特性に与える影響が顕著である.
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