A nitrogen-rich fluorescent conjugated microporous polymer with triazine and triphenylamine units for high iodine capture and nitro aromatic compound detection
A nitrogen-rich fluorescent conjugated microporous polymer with triazine and triphenylamine units for high iodine capture and nitro aromatic compound detection
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DOI：
10.1039/c7ta00590c
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发表时间：
2017-04-28
影响因子：
11.9
通讯作者：
Wang, Yu
中科院分区：
文献类型：
--
作者：
Geng, Tongmou;Zhu, Zongming;Wang, Yu
以2，4，6-三氯-1，3，5-三嗪（TCT）和N，N，N '，N'-四苯基联苯胺（TPB）为原料，在甲磺酸催化下通过Friedel-Crafts反应合成了一种新型富氮荧光共轭微孔聚合物TTPB。TTPB具有共轭面积扩大、富含N、扭曲结构和聚合物网络中微孔的结构特征，对碘蒸气表现出优异、高效、可逆的吸收性能，吸收量高达4.43 g g（-1），这是迄今为止报道的CMP的最高值。荧光光谱研究表明，TTPB对缺电子硝基苯类炸药具有很高的感度，其荧光猝灭机制为荧光猝灭。
A new kind of nitrogen-rich fluorescent conjugated microporous polymer TTPB was synthesized via a Friedel-Crafts reaction of 2,4,6-trichloro-1,3,5-triazine (TCT) and N, N, N', N'-tetraphenylbenzidine (TPB) catalyzed by methanesulfonic acid. Having structural features of an expanded conjugated area, N-rich, twisted structure, and microporosity in polymer networks, TTPB showed excellent, efficient, reversible ultrahigh absorption performance for iodine vapour with an uptake of up to 4.43 g g(-1), which is the highest value reported to date for CMPs. Furthermore, fluorescence study indicated that TTPB exhibits high sensitivity to electron-deficient nitrobenzene explosives via fluorescence quenching.