The development of sustainable heterogeneous catalysts in converting carbon dioxide (CO₂) into value-added chemicals is a promising way to alleviate the environmental pressure caused by global warming. Here, two novel ionic polymers (IPs, namely IP-1 and IP-2) with high yield and excellent physiochemical stability have been synthesized facilely from the direct reaction of 1,3,5-tris(bromomethyl)benzene with 1,4-diazabicyclo[2.2.2]octane and 3,6-di(1H-imidazol-1-yl)pyridazine, respectively. Their catalytic abilities to convert CO₂ into cyclic carbonates have been explored, and both IP-1 and IP-2 show excellent catalytic activity under solvent-free, cocatalyst-free, and mild reaction conditions, and can be recycled and reused six times without decreasing their catalytic abilities. These materials are easily synthesized, and there are no metals and other additives during the catalytic process, which provides a possibility for the industrial immobilization of CO₂ to carbonate over heterogeneous catalysts.

开发将二氧化碳（CO ₂）转化为增值化学品的可持续多相催化剂是缓解全球变暖对环境造成压力的一种有前途的方法。在这里，由1,3,5-三（溴甲基）苯与1,4-的直接反应容易地合成了两种具有高收率和优异的理化稳定性的新型离子聚合物（IPs，即IP-1和IP-2）。二氮杂双环[2.2.2]辛烷和3,6-二（1H-咪唑-1-基）哒嗪。已经探索了它们将CO ₂转化为环状碳酸酯的催化能力，并且IP-1和IP-2在无溶剂，无助催化剂和温和的反应条件下显示出优异的催化活性，可以循环使用六次而不会降低其催化能力。这些材料易于合成，并且在催化过程中没有金属和其他添加剂，这为将CO ₂在非均相催化剂上工业化固定为碳酸盐提供了可能性。