标题：Hybrid porous polymers constructed from octavinylsilsesquioxane and benzene via Friedel-Crafts reaction: tunable porosity, gas sorption, and postfunctionalization
作者：Yue Wu;Dengxu Wang;Liguo Li
作者机构：[Wu, Y] Key Laboratory of Special Functional Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Ch 更多
通讯作者地址：[Liu, HZ]Shandong Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Special Funct Aggregated Mat, Jinan 250100, Peoples R China.
来源：Journal of Materials Chemistry, A. Materials for energy and sustainability
摘要：Friedel-Crafts reaction of cubic octavinylsilsesquioxane (OVS) and benzene results in a series of hybrid porous polymers (HPPs). The resulting materials, HPP-1 to HPP-4, show relatively high porosity with apparent Brunauer-Emmett-Teller surface areas in a range of 400 m~2 g~(-1) to 904 m~2 g~(-1) with total pore volumes in the range of 0.24 cm~3 g~(-1) to 0.99 cm~3 g~(-1). Their porosities can be fine tuned by adjusting the mole ratios of OVS and benzene. They feature both micro-and mesopores (HPP-1 and HPP-2) to almost mesopores (HPP-3 and HPP-4) in the networks. The ratios of micropore volume to total pore volume for HPP-1 to HPP-4 were 0.58, 0.42, 0.10, and 0.11, respectively. These materials exhibit comparable surface area and high thermal stability in a N2 atmosphere. The gas sorption applications reveal that HPP-3 possesses a H2 uptake of 3.47 mmol g~(-1) (0.70 wt%) at 77 K and 760 mmHg and a CO2 uptake of 0.62 mmol g~(-1) (2.73 wt%) at 298 K and 760 mmHg. These results indicate these materials are promising candidates for storing H2 and CO2. In addition, HPP-4 has been successfully postfunctionalized with 3-mercaptopropionic acid via thiol-ene \"click\" reaction.