Abstract: Provided are a curable composition including an amide compound that is represented by Formula (1) below and of which a density of sulfonic acid is 3.9 milliequivalent/g or greater. m represents an integer of 1 or greater, n represents an integer of 2 or greater, L1 represents a m+1-valent linking group, and L2 represents an n-valent linking group. R1 represents a hydrogen atom or an alkyl group, and R2 represents —SO3?M+ or —SO3R3 (R3 represents an alkyl group or an aryl group). Here, in a case where there are plural R2's, not all of the R2's are —SO3R3. M+ represents a hydrogen ion, an inorganic ion, or an organic ion.

Abstract: There is provided a composite gas separation membrane including a gas separation layer, which is formed to include a polyimide resin, on a support layer having gas permeability, in which the polyimide resin includes a repeating unit represented by the following Formula (I) in Formula (I), X represents a group having a specific structure represented by any of the following Formulae (I-a) to (I-h), in Formula (I), Y1 represents a group represented by the following Formula (II-a) or (II-b), and in Formulae (II-a) and (II-b), R3 represents a substituent group, A represents a dissociable group, p represents 0 or 1, p1 represents an integer of 0 to 2, and p2 represents an integer of 2 or greater.

Abstract: Provided are a curable composition including an amide compound that is represented by Formula (1) below and of which a density of sulfonic acid is 3.9 milliequivalent/g or greater, a functional polymer hardened product, a stack or a device including a functional polymer membrane, an amide compound, and a manufacturing method thereof. m represents an integer of 1 or greater, n represents an integer of 2 or greater, L1 represents a m+1-valent linking group, and L2 represents an n-valent linking group. R1 represents a hydrogen atom or an alkyl group, and R2 represents —SO3?M+ or —SO3R3 (R3 represents an alkyl group or an aryl group). Here, in a case where there are plural R2's, not all of the R2's are —SO3R3. M+ represents a hydrogen ion, an inorganic ion, or an organic ion.

Abstract: There is provided a composite gas separation membrane including a gas separation layer, which is formed to include a polyimide resin, on a support layer having gas permeability, in which the polyimide resin includes a repeating unit represented by the following Formula (I) in Formula (I), X represents a group having a specific structure represented by any of the following Formulae (I-a) to (I-h), in Formula (I), Y1 represents a group represented by the following Formula (II-a) or (II-b), and in Formulae (II-a) and (II-b), R3 represents a substituent group, A represents a dissociable group, p represents 0 or 1, p1 represents an integer of 0 to 2, and p2 represents an integer of 2 or greater.

Abstract: A curable resin composition comprising a (meth)acrylate monomer having an aromatic ring, a non-conjugated vinylidene group-containing compound represented by the general formula below, and a thermal or a photo-radical polymerization initiator makes it possible to produce a cured product with minimized occurrence of burring during molding and high product yield after molding. The cured product has good heat coloration resistance and low Abbe's number. R11, R12, R15, and R16 represent a substituent and A represents an atomic group necessary for forming a cyclic structure.

Abstract: A curable resin composition comprising a (meth)acrylate monomer having an aromatic ring, a non-conjugated vinylidene group-containing compound represented by the general formula below, and a thermal or a photo-radical polymerization initiator makes it possible to produce a cured product with minimized occurrence of burring during molding and high product yield after molding. The cured product has good heat coloration resistance and low Abbe's number. R11, R12, R15, and R16 represent a substituent and A represents an atomic group necessary for forming a cyclic structure.