Abstract: Provided is a poly(arylene ether ketone) resin which inhibits reactions such as molecular weight extension and crosslinking in a high-temperature molten state and which is excellent in melt viscosity stability and molding processability. The poly(arylene ether ketone) resin contains an alkylsulfonyl group represented by general formula (1). In the formula, R is an alkyl group containing one to four carbon atoms.

Abstract: A polyarylene ether ketone resin has a repeating unit (1-1) represented by general formula (1-1) below and a repeating unit (2-1) represented by general formula (2-1) below. In the formulae, R is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, Ar1 and Ar2 are each a divalent organic group (3-1) represented by general formula (3-1) below, and n is 0 or 1.

Abstract: A polyketone composition includes: (A) a polyketone having, in a main chain, a structural unit represented by the following Formula (I); and (B) an epoxy compound. In Formula (I), X represents a bivalent group that has from 1 to 50 carbon atoms and that may have a substituent group, Y represents a bivalent hydrocarbon group that has from 1 to 30 carbon atoms and that may have a substituent group, and n represents an integer from 1 to 1500.

Abstract: An aromatic polyketone including, in a structural unit, at least one alicyclic skeleton and at least one carbon atom bound by two rotatable single bonds, or an aromatic polyketone including a structural unit represented by the following Formula (1), the following Formula (2), or the following Formula (4), and a structural unit represented by the following Formula (5) is provided.

Abstract: A polymer includes: a structural unit represented by the following Formula (I-1) and a structural unit represented by the following Formula (I-2). In Formulae (I-1) and (I-2), X and X? each independently represent a divalent group having 6 to 50 carbon atoms and containing an aromatic ring; Y represents a divalent group having 5 to 50 carbon atoms, the divalent group including an alicyclic ring and alkylene groups, and the alkylene groups each having 1 to 10 carbon atoms connecting carbon atoms included in carbonyl groups adjacent to Y with the alicyclic ring; Y? represents a divalent group having 3 to 50 carbon atoms and containing an alicyclic ring directly bonded to carbon atoms included in carbonyl groups adjacent to Y?; and m and n each represent an integer from 3 to 1,000.

Abstract: A polyketone composition includes: (A) a polyketone having, in a main chain, a structural unit represented by the following Formula (I); and (B) an epoxy compound. In Formula (I), X represents a bivalent group that has from 1 to 50 carbon atoms and that may have a substituent group, Y represents a bivalent hydrocarbon group that has from 1 to 30 carbon atoms and that may have a substituent group, and n represents an integer from 1 to 1500.

Abstract: Provided is a method of manufacturing an aromatic polyketone film, the method including: applying a coating liquid to at least a part of a surface of a substrate to form a coating liquid layer, the coating liquid including a solvent and an aromatic polyketone having a structural unit represented by Formula (1) or (2); drying the coating liquid layer; and after the drying, subjecting the coating liquid layer to a heat treatment. In Formula (1) or (2), each R1 independently represents an alkyl group having 1 to 20 carbon atoms; each R2 and each R3 independently represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; X represents a specific divalent aromatic hydrocarbon group, or a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms; and Y represents a specific divalent functional group.

Abstract: Provided is a method of manufacturing an aromatic polyketone film, the method including: applying a coating liquid to at least a part of a surface of a substrate to form a coating liquid layer, the coating liquid including a solvent and an aromatic polyketone having a structural unit represented by Formula (1) or (2); drying the coating liquid layer; and after the drying, subjecting the coating liquid layer to a heat treatment. In Formula (1) or (2), each R1 independently represents an alkyl group having 1 to 20 carbon atoms; each R2 and each R3 independently represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; X represents a specific divalent aromatic hydrocarbon group, or a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms; and Y represents a specific divalent functional group.

Abstract: An aromatic polyketone including, in a structural unit, at least one alicyclic skeleton and at least one carbon atom bound by two rotatable single bonds, or an aromatic polyketone including a structural unit represented by the following Formula (1), the following Formula (2), or the following Formula (4), and a structural unit represented by the following Formula (5) is provided.

Abstract: Provided is a method of manufacturing an aromatic polyketone film, the method including: applying a coating liquid to at least a part of a surface of a substrate to form a coating liquid layer, the coating liquid including a solvent and an aromatic polyketone having a structural unit represented by Formula (1) or (2); drying the coating liquid layer; and after the drying, subjecting the coating liquid layer to a heat treatment. In Formula (1) or (2), each R1 independently represents an alkyl group having 1 to 20 carbon atoms; each R2 and each R3 independently represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; X represents a specific divalent aromatic hydrocarbon group, or a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms; and Y represents a specific divalent functional group.