共轭微孔聚合物
微型多孔材料
化学
聚合物
高分子化学
四苯乙烯
共轭体系
有机化学
荧光
量子力学
物理
聚集诱导发射
作者
Mohamed Gamal Mohamed,Tzu‐Chun Chen,Shiao‐Wei Kuo
出处
期刊:Macromolecules
[American Chemical Society]
日期:2021-05-21
卷期号:54 (12): 5866-5877
被引量:117
标识
DOI:10.1021/acs.macromol.1c00736
摘要
We describe the first examples of benzoxazine (BZ)-linked tetraphenylethylene (TPE)- and pyrene (Py)-containing conjugated microporous organic polymers (CMPs)—TPE-TPE-BZ and Py-TPE-BZ, respectively—having high surface areas and pore volumes, prepared through multistep syntheses (Schiff base, reduction, Mannich, and Sonogashira–Hagihara coupling), and their solid-state transformations through ring-opening polymerizations (ROPs) to give BZ linkages have never been reported previously. The chemical structures and, particularly, the presence of BZ units in the TPE-TPE-BZ and Py-TPE-BZ CMPs were confirmed through Fourier transform infrared and solid-state nuclear magnetic resonance spectroscopic analyses. The TEP-TPE-BZ CMP had a high BET specific surface area and a high total pore volume (325 m2 g–1 and 0.69 cm3 g–1, respectively). Because BZ units can undergo ROP through simple thermal treatment without the need for a curing agent or catalyst, the CMPs readily underwent one-step chemical transformations in the solid state to form new CMPs featuring phenolic OH and Mannich bridges as functional groups capable of forming strong intermolecular hydrogen bonds and/or acid/base interactions with molecules of CO2 gas to enhance the gas uptake ability.
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