abstract |
According to the present invention, at least one compound selected from the group consisting of alkali metal carbonate, alkali metal bicarbonate and alkali metal hydroxide, and a crosslinked polymer in which a polymer having a carboxyl group is crosslinked, vinyl acetate, acrylic acid, methacrylic acid and these A composition for a CO 2 gas separation membrane comprising a non-crosslinkable polymer obtained by polymerizing one or more monomers selected from the group consisting of derivatives of is provided. |