Imidazolium‐Functionalized Ionic Hypercrosslinked Porous Polymers for Efficient Synthesis of Cyclic Carbonates from Simulated Flue Gas

• DOI: 10.1002/cssc.201902952
• Publication Date: 2019-11-11T09:44:10Z
• Authors: Wenli Zhang; Fangpei Ma; Long Ma; Yu Zhou; Jun Wang
• Keywords: Reusability

The rapid growth of CO2 emissions, especially from power plants, has led to the urgent need directly capture and fix in flue gas after simple purification rather than energy-intensive separation. Herein, imidazolium-functionalized ionic hypercrosslinked porous polymers (HCPs) bearing adjustable surface groups were straightforwardly synthesized through co-hypercrosslinking benzylimidazole salts crosslinker Friedel-Crafts alkylation. Abundant microporosity relatively high moieties obtainable ethyl-group-tethered HCP, giving a remarkably selective performance with uptake 3.05 mmol g-1 an ideal adsorbed solution theory (IAST) /N2 selectivity as 363 (273 K, 1 bar). This polymer demonstrated efficiency synthesis cyclic carbonates coupling various epoxides simulated (15 % 85 N2 ), yields, large turnover numbers (up 4800), stable reusability under additive- solvent-free conditions.