POSS-based microporous polymers: Efficient Friedel-Crafts synthesis, CO2 capture and separation properties

作者: Jun Liu , Yunfei Liu , Xiaowei Jiang , Yali Luo , Yinong Lyu

DOI: 10.1016/J.MICROMESO.2017.05.043

关键词: Selective adsorptionMicroporous materialPolymerCyanuric chlorideAdsorptionChemical engineeringOrganic chemistryFriedel–Crafts reactionSelectivityMaterials scienceThermal stability

摘要: Abstract Two kinds of POSS-based microporous organic polymers (PMOPs) were prepared by cost-effective Friedel-Crafts reaction octaphenylsilsesquioxanes with p-dimethoxybenzene (PMOP-1) or cyanuric chloride (PMOP-2). PMOP-1 high surface area 806 m2 g−1 exhibited reasonable CO2 adsorption (2.59 mmol g−1, 273 K/1 bar) and selectivity, whereas PMOP-2 lower (559 m2 g−1) showed a higher CO2/N2 selectivity (30.0) CO2/CH4 (6.8) at 273 K/1 bar due to the amount nitrogen incorporated within structure. The correlation between performance PMOPs in capture/separation their properties such as area, active sites, heat was investigated. combination method, thermal stability, selective make these materials potential candidates for application capture separation technology.

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