密度が高いロタキサンの背骨を持つ機械的に相互接続されたエアロゲル
Xinhai Zhang1, Kai Liu1, Jun Zhao1
1School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
Journal of the American Chemical Society
|June 13, 2022
まとめ
ダイナミックな分子構造を 3Dの多孔構造に統合することで 機械的に結合したエアロゲル (MIA) を開発しました これらの新しいMIAは,強固な機械的特性,適応的反応,高度な材料のアプリケーションのための多機能機能を有しています.
科学分野:
- 材料科学
- 超分子化学
- ナノテクノロジー
背景:
- 機械的に結合した分子は 自己適応性のある材料に 独特のダイナミック性と構造的特徴を 提供します
- 複雑で高度に機能する機械的に相互接続された材料を製造することは依然として大きな課題です.
研究 の 目的:
- 機械的に相互接続されたモジュールを3Dの多孔なエアロゲルフレームワークに統合することによって,機械的に相互接続されたエアロゲル (MIA) の概念を導入する.
- 機械的な適応性と多機能性の組み合わせを 単一の材料で可能にする.
- 外部刺激に対する強固な機械的特性と反応性を要求するアプリケーションの MIA の可能性を調査する.
主な方法:
- 機械的に相互接続されたモジュールから構成された軽量で3次元 (3D) の多孔なエアロゲルモノリフの製造.
- 階層的なメソおよびサブミクロン孔構造と機械的性質の特徴化 (ヤングのモジュール,特定のモジュール).
- 外部刺激に対する機械的適応性と反応性の評価
- ヨウ素の吸収,保温,有機染料の選択的吸収による多機能性の実証.
主要な成果:
- 機械的に結合したエアロゲル (MIA) の製造に成功し,階層的な多孔性と良い外観を備えた.
- MIAは,平均ヤングのモジュールが5.80GPaで,特異的モジュールが130.5kN·m/kgで,高い機械的強度を示している.
- 外部刺激に対する好ましい機械的適応性と反応性を示した.
- MIAはヨウ素の吸収,保温,有機染料の選択的吸収における多機能性を示しています.
結論:
- 機械的に相互接続されたエアロゲル (MIA) は,機械的な適応性と多機能性を成功裏に統合します.
- 提案されたMIA設計は,高度なトポロジック化学構造を持つインテリジェルのための新しい道を開きます.
- この作業は,機械的に相互接続された材料と適応機能のある材料の進歩を容易にする.
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