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.

中文翻译：

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含吡嗪部分的荧光共轭微孔聚合物，用于碘的吸附和荧光传感。

通过2,5-二三苯胺基-吡嗪（DTPAPz）与N，N，N'，N'-tetrapheny-2,5-（diazyl）的聚合反应制备了两种含吡嗪基团的荧光共轭微孔聚合物）吡嗪（TDPz）与2,4,6-三氯-1,3,5-三嗪（TCT）通过甲磺酸作为催化剂的Friedel-Crafts反应进行反应。两种CMP在氮气氛下均具有较高的热稳定性，分解温度分别达到596和248°C以上。通过多孔形态和给电子氮，以及富电子的π共轭结构，碘蒸气在CMP上的吸附性能非常好，可以达到441％和312％。此外，荧光研究表明，两种CMP对缺电子的碘都具有很高的荧光敏感性，