A novel bifunctional metalloporphyrin-based hyper-crosslinked ionic polymer as heterogeneous catalyst for efficiently converting CO2 into cyclic carbonates

The rapid development of industrialization generated an urgent requirement for the catalytic conversion of CO2 into high-value-added chemical products. Herein, a class of novel bifunctional metalloporphyrin-based hyper-crosslinked ionic polymer (ImHCP-Co) was synthesized via one-pot Friedel–Crafts alkylation and quaternization reactions. The obtained bifunctional ImHCP-Co showed a high BET surface area and sufficient CO2 adsorption capacity. Relying on the synergistic effect of the electrophilic and nucleophilic functionalities, the as-prepared ImHCP-Co showed an excellent performance in CO2 cycloaddition using epichlorohydrin as the substrate (99