含吡嗪基团的荧光共轭微孔聚合物，用于碘的吸附和荧光传感。
Fluorescent conjugated microporous polymers containing pyrazine moieties for adsorbing and fluorescent sensing of iodine.
机构信息
AnHui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, School of Chemistry and Chemical Engineering, Anqing Normal University, Anqing, 246011, China.
School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, People's Republic of China.
出版信息
Environ Sci Pollut Res Int. 2020 Jun;27(16):20235-20245. doi: 10.1007/s11356-019-06534-8. Epub 2020 Apr 1.
Two kinds of fluorescent conjugated microporous polymers containing pyrazine moieties were prepared by the polymerization reaction of 2,5-di-triphenylamine-yl-pyrazine (DTPAPz) and N,N,N',N'-tetrapheny-2,5-(diazyl) pyrazine (TDPz) with 2,4,6-trichloro-1,3,5-triazine (TCT) through Friedel-Crafts reaction using the methanesulfonic acid as a catalysts. Both CMPs have high thermal stability and decomposition temperature reaches above 596 and 248 °C under nitrogen atmosphere, respectively. By right of porous morphology and electron-donating nitrogen, as well as electron-rich π-conjugated structures, the adsorption performance for iodine vapor on the CMPs is very excellent, which can reach 441% and 312%. In addition, fluorescence studies showed that the two CMPs exhibited high fluorescence sensitivity to electron-deficient iodine, o-nitrophenol (o-NP), and picric acid (PA) via fluorescence quenching.
两种含有吡嗪基团的荧光共轭微孔聚合物通过 2,5-二（三苯基氨基）吡嗪（DTPAPz）和 N,N,N',N'-四苯基-2,5-（二叠氮基）吡嗪（TDPz）与 2,4,6-三氯-1,3,5-三嗪（TCT）的聚合反应，使用甲磺酸作为催化剂，通过 Friedel-Crafts 反应制备得到。两种 CMP 均具有高热稳定性，在氮气气氛下的分解温度分别达到 596 和 248°C。由于多孔形态和供电子氮以及富电子的π共轭结构，CMP 对碘蒸气的吸附性能非常优异，分别达到 441%和 312%。此外，荧光研究表明，这两种 CMP 通过荧光猝灭对缺电子碘、邻硝基苯酚（o-NP）和苦味酸（PA）表现出高荧光灵敏度。
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