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Fluorene‐Based Conjugated Microporous Polymers: Preparation and Chemical Sensing Application
Author(s) -
Zhang Qiujing,
Yu Sen,
Wang Qian,
Xiao Qin,
Yue Yong,
Ren Shijie
Publication year - 2017
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201700445
Subject(s) - conjugated microporous polymer , microporous material , fluorene , quantum yield , polymer , materials science , carbazole , fluorescence , conjugated system , photoluminescence , photochemistry , monomer , chemical engineering , specific surface area , polymer chemistry , nanotechnology , chemistry , organic chemistry , optoelectronics , composite material , physics , catalysis , quantum mechanics , engineering
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 m 2 g −1 , the largest pore volume of 0.30 cm 3 g −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 5241 m −1 for 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.