METHOD FOR MANUFACTURING CARBON DIOXIDE SEPARATION MEMBRANE, AND CARBON DIOXIDE SEPARATION MEMBRANE

摘要

The present invention provides a carbon dioxide separation membrane that has a graft in which a substituent having high affinity is selectively introduced to carbon dioxide, and that has a high carbon dioxide separation function. The present invention is a method for manufacturing a carbon dioxide separation membrane, the method comprising: a step (1) for exposing a polymer film to radiation; a step (2) for forming a graft on the polymer film thus exposed to radiation, the graft being a monomer as a repeating unit having a substituent capable of forming a salt with fluoride ions; and a step (3) for treating the substituent capable of forming a salt with fluoride ions with a fluoride salt to form a salt with fluoride ions in the substituent.