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Designed synthesis of large-pore crystalline polyimide covalent organic frameworks.

Authors
  • Fang, Qianrong
  • Zhuang, Zhongbin
  • Gu, Shuang
  • Kaspar, Robert B
  • Zheng, Jie
  • Wang, Junhua
  • Qiu, Shilun
  • Yan, Yushan
Type
Published Article
Journal
Nature Communications
Publisher
Springer Nature
Publication Date
Jan 01, 2014
Volume
5
Pages
4503–4503
Identifiers
DOI: 10.1038/ncomms5503
PMID: 25054211
Source
Medline
License
Unknown

Abstract

Covalent organic frameworks (COFs) are an emerging class of porous crystalline polymers with a wide variety of applications. They are currently synthesized through only a few chemical reactions, limiting the access and exploitation of new structures and properties. Here we report that the imidization reaction can be used to prepare a series of polyimide (PI) COFs with pore size as large as 42 × 53 Å(2), which is among the largest reported to date, and surface area as high as 2,346 m(2) g(-1), which exceeds that of all amorphous porous PIs and is among the highest reported for two-dimensional COFs. These PI COFs are thermally stable up to 530 °C. We also assemble a large dye molecule into a COF that shows sensitive temperature-dependent luminescent properties.

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