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相关实验视频

Updated: Jul 13, 2025

Microfluidic-based Synthesis of Covalent Organic Frameworks COFs: A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
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来自可溶液加工的共价有机框架的高度灵活的介电膜.

Milinda C Senarathna1, He Li2,3, Sachini D Perera1

  • 1Department of Chemistry and Biochemistry, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080, USA.

Angewandte Chemie (International ed. in English)
|October 18, 2023
PubMed
概括

研究人员开发了一种孔隙工程方法,以提高共价有机框架 (COF) 的可处理性. 这一创新产生了灵活的,晶体的COF薄膜,适用于先进的介电装置和储能应用.

关键词:
协价有机框架 协价有机框架介电材料是一种介电材料.动态共价化学 动态共价化学片制造 片的制造机械表征 机械表征

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相关实验视频

Last Updated: Jul 13, 2025

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科学领域:

  • 材料科学 材料科学 材料科学
  • 聚合物化学 聚合物化学
  • 纳米技术 纳米技术

背景情况:

  • 共价有机框架 (COFs) 显示出对各种应用的前景.
  • 由于COF的溶液可加工性较差,目前限制了它们的广泛使用.
  • 开发可加工的COF对于推进材料应用至关重要.

研究的目的:

  • 设计共价有机框架 (COFs) 以提高解决方案的可加工性.
  • 使用水友性侧链制造柔性,晶体的COF薄膜.
  • 评估改造的COF的机械和介电性质.

主要方法:

  • 使用水友性侧链,对和β-胺相关的COF进行孔隙工程.
  • 独立的COF薄膜 (COF-PEO-3和TFP-PEO-3) 的制造.
  • 机械特性 (Young的模量) 和介电性质的评估.

主要成果:

  • 成功提高了COF的可加工性和可溶性.
  • 制造出柔性,结晶的COF薄膜,其Young的模块为391.7MPa (COF-PEO-3) 和1034.7MPa (TFP-PEO-3). 这种薄膜的压力可以达到1034.7MPa.
  • 在TFP-PEO-3薄膜电容器中证明了高介电常数和断裂强度,达到11.22 J cm−3的放电能量密度.

结论:

  • 已经建立了一种生产可处理溶液的COF和柔性薄膜的一般方法.
  • 设计的COF具有出色的机械性能,适合用于介电装置.
  • 这些进步为灵活的电子和储能应用提供了巨大的潜力.