Abstract Carbon dioxide (CO2) is cheap, renewable, abundant, and nontoxic carbon feedstocks in chemical reactions. In the past two decades, utilization of CO2 in polymer science has become a meaningful topic bridging two separate subjects, namely CO2 valorization and sustainable polymer synthesis. This review summarizes the recent progress in CO2 copolymer materials from synthesis to material performance adjustment, focusing on commercialized or potential commodity sustainable materials such as biodegradable polycarbonates and new structure polyurethanes from CO2‐polyol building blocks.