PROBLEM TO BE SOLVED: To provide an acid gas adsorption material capable of adsorbing selectively acid gas such as carbon dioxide by chemical absorption by an industrially-inexpensive temperature swing method.SOLUTION: An acid gas adsorption material contains a cured product of a polyfunctional epoxy compound having a cyclic group and an amine compound having a primary or secondary aliphatic amino group, or a cured product having a cyclic group, and having a nitrogen content of 3-20 mass% and a glass-transition temperature of 40-140°C.SELECTED DRAWING: None
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