Separation is widely involved in many fields, such as materials synthesis, gas purification or
removal, water treatment, petroleum exploitation, soil remediation, food and medicine
production, etc. Compared with the physical separation, the chemical separation has unique
advantages when the functionalized process aids are added in systems. The CO 2-
responsive materials are considered as promising separating mediums due to their
relatively green and easily recyclable properties, which realize the resource utilization of CO …