以二亚乙基三胺丙烯酸盐离子液体单体为原料,制备了一种聚离子液体——聚二亚乙基三胺丙烯酸盐(PDETAA),并对其捕获CO2性能进行了研究。当温度低于70℃时,PDETAA捕获CO2具有捕获容量高、速度快等特点,在低温捕获的CO2可以在高温下有效解吸,捕获/解吸过程可以重复进行,PDETAA可再生。每个捕获/解吸循环,每克PDETAA可以分离大约0.36g CO2。PDETAA作为一种新型固态CO2捕获材料,在燃气和烟气脱碳领域表现出较大的应用潜力。 A poly (ionic liquid) - poly (diethylenetriamine) acrylate (PDETAA) was prepared from diethylenetriamine acrylate ionic liquid monomer and its CO2 capture performance was studied. When the temperature is lower than 70 ℃, PDETAA captures CO2 with high capture capacity and high speed. CO2 captured at low temperature can be effectively desorbed at high temperature, and the capture / desorption process can be repeated. PDETAA can be regenerated. Approximately 0.36 g CO2 per gram PDETAA can be separated per capture / desorption cycle. As a new solid-state CO2 capture material, PDETAA has shown great potential in the field of gas and flue gas decarbonization.