用于一氧化碳吸附和碘吸附的基于多功能多面体低聚倍半硅氧烷（POSS）的杂化多孔材料

Multifunctional Polyhedral Oligomeric Silsesquioxane (POSS) Based Hybrid Porous Materials for CO Uptake and Iodine Adsorption.

作者信息

Gamal Mohamed Mohamed, Tsai Mei-Yin, Wang Chih-Feng, Huang Chih-Feng, Danko Martin, Dai Lizong, Chen Tao, Kuo Shiao-Wei

机构信息

Department of Materials and Optoelectronic Science, Center of Crystal Research, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.

Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt.

出版信息

Polymers (Basel). 2021 Jan 10;13(2):221. doi: 10.3390/polym13020221.

In this study, two different types of hybrid porous organic polymers (POPs), polyhedral oligomeric silsesquioxane tetraphenylpyrazine (POSS-TPP) and tetraphenylethene (POSS-TPE), were successfully synthesized through the Friedel-Crafts polymerization of tetraphenylpyrazine (TPP) and tetraphenylethene (TPE), respectively, with octavinylsilsesquioxane (OVS) as node building blocks, in the presence of anhydrous FeCl as a catalyst and 1,2-dichloroethane at 60 °C. Based on N adsorption and thermogravimetric analyses, the resulting hybrid porous materials displayed high surface areas (270 m/g for POSS-TPP and 741 m/g for POSS-TPE) and outstanding thermal stabilities. Furthermore, as-prepared POSS-TPP exhibited a high carbon dioxide capacity (1.63 mmol/g at 298 K and 2.88 mmol/g at 273 K) with an excellent high adsorption capacity for iodine, reaching up to 363 mg/g, compared with the POSS-TPE (309 mg/g).

在本研究中，分别以八乙烯基倍半硅氧烷（OVS）为节点构建单元，在无水氯化铁作为催化剂和1,2 - 二氯乙烷存在的条件下，于60℃通过四苯基吡嗪（TPP）和四苯乙烯（TPE）的傅克聚合反应，成功合成了两种不同类型的杂化多孔有机聚合物（POPs），即多面体低聚倍半硅氧烷四苯基吡嗪（POSS - TPP）和四苯乙烯（POSS - TPE）。基于氮气吸附和热重分析，所得杂化多孔材料显示出高比表面积（POSS - TPP为270 m²/g，POSS - TPE为741 m²/g）和出色的热稳定性。此外，与POSS - TPE（309 mg/g）相比，所制备的POSS - TPP表现出高二氧化碳吸附量（298 K时为1.63 mmol/g，273 K时为2.88 mmol/g）以及对碘的优异高吸附容量，高达363 mg/g。