It is believed that porous heterogeneous materials with excellent properties are promising candidates for efficient fixation of diluted and waste CO₂. Herein, a family of mesoporous porous ionic copolymers (PIPs) was designed and prepared from the copolymerization of divinylbenzene (DVB) with vinyl-functionalized ionic liquids monomers through free radical copolymerization process. It was demonstrated that the heterogeneous PIP poly(divinylbenzene-1-allyl-tetramethylguanidinium bromide) PDVB-[AlTMG]Br-0.2 showed excellent activities in facile cycloaddition of CO₂ into cyclic carbonates without using any external co-catalysts or metal additives. The results of characterizations and quantum mechanical calculations further showed that the specic hierarchical meso-macroporous structure of PDVB-[AlTMG]Br-0.2 offered the strongest binding interaction with SO and besides had a relatively good CO₂ affinity, which results to the best cataltic activity for cycloaddition of CO₂. Moreover, PDVB-[AlTMG]Br-0.2 exhibited high activities and good reusability in cycloaddition of 15 % diluted CO₂ with various epoxides. It is believed that our work would have a great potential in energy-effective fixation of industrial combustion CO₂ into high-value organic carbonates.

据信具有优异性能的多孔非均质材料是有效固定稀释的和废弃的CO _2的有前途的候选者。本文中，通过自由基共聚工艺，由二乙烯基苯（DVB）与乙烯基官能化的离子液体单体共聚，设计并制备了一系列介孔多孔离子共聚物（PIP）。结果表明，异质PIP聚（二乙烯基苯-1-烯丙基-四甲基胍基溴化）PDVB- [AlTMG] Br-0.2在CO _2的便捷环加成中表现出优异的活性。无需使用任何外部助催化剂或金属添加剂即可制成环状碳酸酯。表征和量子力学计算的结果进一步表明，PDVB- [AlTMG] Br-0.2的特定的层级中微结构提供了与SO的最强结合相互作用，并且具有相对较好的CO ₂亲和力，从而获得了最佳的催化性能。环加CO _2的活性。此外，PDVB- [AlTMG] Br-0.2在各种环氧化物与15％稀释的CO _2的环加成中表现出高活性和良好的可重复使用性。人们认为，我们的工作在将工业燃烧CO ₂能源有效地固定为高价值有机碳酸盐方面具有巨大潜力。