Ge Mingtao, Liu Hongzhi
Key Laboratory of Special Functional Aggregated Materials of, the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, P.R. China.
Key Laboratory of Organosilicon and Materials Technology of, the Ministry of Education, Hangzhou Normal University, Hangzhou, 31112, P.R. China.
Chemistry. 2018 Feb 9;24(9):2224-2231. doi: 10.1002/chem.201705192. Epub 2018 Jan 16.
Two different silsesquioxane-based porous polymers (FHPPs), namely FHPP-1 and FHPP-2, have been prepared, respectively, by changing the acid scavenger from sodium bicarbonate to triethylamine in the Heck reaction between octavinylsilsesquioxane (OVS) and 1,4-dibromotetrafluorobenzene. It was observed that defluorination occurred in the case of triethylamine. FHPP-1 possesses a higher surface area of 600 m g and a hierarchical porous structure; in contrast, FHPP-2 possesses a S value of 325 m g and a microporous structure. This work provides a new approach to the preparation and tuning of fluorine-containing porous polymers based on silsesquioxanes. These porous materials were employed to remove dyes and a heavy metal from water, showing good binding efficiencies.
通过在八乙烯基倍半硅氧烷（OVS）与1,4-二溴四氟苯的Heck反应中，将酸清除剂从碳酸氢钠改为三乙胺，分别制备了两种不同的基于倍半硅氧烷的多孔聚合物（FHPPs），即FHPP-1和FHPP-2。观察到在使用三乙胺的情况下发生了脱氟反应。FHPP-1具有600 m²/g的较高比表面积和分级多孔结构；相比之下，FHPP-2的比表面积为325 m²/g，具有微孔结构。这项工作为基于倍半硅氧烷的含氟多孔聚合物的制备和调控提供了一种新方法。这些多孔材料用于从水中去除染料和重金属，显示出良好的结合效率。
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