CO2-Responsive Polymers

This Review focuses on the recent progress in the area of CO2‐responsive polymers and provides detailed descriptions of these existing examples. CO2‐responsive polymers can be categorized into three types based on their CO2‐responsive groups: amidine, amine, and carboxyl groups. Compared with traditional temperature, pH, or light stimuli‐responsive polymers, CO2‐responsive polymers provide the advantage to use CO2 as a “green” trigger as well as to capture CO2 directly from air. In addition, the current challenges of CO2‐responsive polymers are discussed and the different solution methods are compared. Noteworthy, CO2‐responsive polymers are considered to have a prosperous future in various scientific areas. CO2‐responsive polymers receive enormous attention due to CO2 as a “green” trigger. This Review highlights the recent progress in this field. The designs of molecular structures, underlying mechanisms, and potential applications of CO2‐responsive polymers are analyzed. Possible future developments and perspectives of CO2‐responsive polymers are also discussed.