Synthesis of Polycarbonates from CO₂ Promoted by Immobilized Ionic Liquid Functionalized di‐Mg Complex Catalyst

The capture and conversion of anthropogenic CO2 is a paramount challenge for our global ecosystem. An optimal way to cope with the emitted efficiently convert it value-added materials. Whereas nature sequesters by making sugar-based polymers, utilizing make highly demanded synthetic polymers such as polycarbonates great value. present work reports synthesis new supported ionic liquid (IL) functionalized organic ligand that able accept metal sites. After incorporating di-nuclear magnesium, was utilized single-component solid catalyst copolymerization cyclohexene oxide. obtained found be active under mild pressures (1–15 atm) giving turnover number up 283 frequency 11.8 h−1. To authors knowledge, these rates are highest using heterogeneous catalyst, maintaining 96–99 % selectivity 97–99 carbonate repeat units. In addition, showed high molecular weights (16.7 11.7 kg/mol) 1.05 1.6 dispersity (Đ). recycled 4 times, regular laboratory conditions without any intermediate reactivation steps, which provided ∼3 g polycarbonate ∼0.03 (100 : 1) at 80 °C in neat oxide 15 atm CO2.