Fluorene-Based Conjugated Microporous Polymers: Preparation and Chemical Sensing Application
Fluorene-Based Conjugated Microporous Polymers: Preparation and Chemical Sensing Application
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芴基共轭微孔聚合物的制备及化学传感应用
DOI：
10.1002/marc.201700445
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发表时间：
2017
影响因子：
4.6
通讯作者：
Ren Shijie
中科院分区：
文献类型：
--
作者：
Zhang Qiujing;Yu Sen;Wang Qian;Xiao Qin;Yue Yong;Ren Shijie
共轭微孔聚合物具有很强的荧光性，在光电子领域有着广泛的应用前景，如荧光光谱、化学传感等。通过Yamamoto偶联反应，合理设计单体，合成了一系列具有不同电子结构的芴基共轭微孔聚合物（FCMPs）。FCMPs显示出高度的微孔性、良好的比表面积和可变的荧光。FCMP 3在网络中具有三嗪结，表现出最高的比表面积489 m2 g −1，最大的孔体积0.30 cm 3 g −1，以及最高的固态光致发光量子产率11.46%。以一系列硝基芳香族化合物为被测物，研究了FCMPs的化学传感性能。在FCMP中，FCMP 3表现出最高的Stern-Volmer常数，分别为2541，4708和5241 m − 1，用于检测硝基苯，4-硝基甲苯，2，4-二硝基甲苯，这与最先进的CMP传感剂的检测效率相当。
Conjugated microporous polymers (CMPs) with strong fluorescence are great candidates for optoelectronic applications such as photocatalysis and chemical sensing. A series of novel fluorene‐based conjugated microporous polymers (FCMPs) with different electronic structures are prepared by Yamamoto coupling reactions using rationally designed monomers. The FCMPs show a high degree of microporosity, decent specific surface areas, and variable fluorescence. FCMP3, which possesses a triazine knot in the network, exhibits the highest specific surface area of 489 m2g−1, the largest pore volume of 0.30 cm3g−1, and the highest solid‐state photoluminescence quantum yield of 11.46%. Chemical sensing performance of FCMPs is studied using a range of nitroaromatic compounds as the analytes. Among the FCMPs, FCMP3 exhibits the highest Stern–Volmer constants of 2541, 4708, and 5241m−1for the detection of nitrobenzene, 4‐nitrotoluene, 2,4‐dinitrotoluene, respectively, which are comparable to the detecting efficiency of the state‐of‐the‐art CMP‐based sensing agents.