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- Title
Synthesis of Ionic Vinylene‐Linked Covalent Organic Frameworks through Quaternization‐Activated Knoevenagel Condensation.
- Authors
Meng, Fancheng; Bi, Shuai; Sun, Zuobang; Jiang, Biao; Wu, Dongqing; Chen, Jie‐Sheng; Zhang, Fan
- Abstract
We developed a simple approach to synthesizing ionic vinylene‐linked two‐dimensional covalent organic frameworks (COFs) through a quaternization‐promoted Knoevenagel condensation at three aromatic methyl carbon atoms of N‐ethyl‐2,4,6‐trimethylpyridinium halide with multitopic aromatic aldehyde derivatives. The resultant COFs exhibited a honeycomb‐like structure with high crystallinity and surface areas as large as 1343 m2 g−1. The regular shape‐persistent nanochannels and the positively charged polymeric frameworks allowed the COFs to be uniformly composited with linear polyethylene oxide and lithium salt, displaying ionic conductivity as high as 2.72×10−3 S cm−1.
- Subjects
IONIC conductivity; ALDEHYDE derivatives; POLYETHYLENE oxide; CONDENSATION; SURFACE area; AROMATIC aldehydes; POLYELECTROLYTES
- Publication
Angewandte Chemie, 2021, Vol 133, Issue 24, p13726
- ISSN
0044-8249
- Publication type
Academic Journal
- DOI
10.1002/ange.202104375