The invention pertains to a side-chain functionalized copolymer (P1) comprising reactive end-groups. The present invention also pertains to the preparation process of copolymer (P1) starting from copolymer (P0), as well as to the use of the copolymer (P1) in the preparation of a membrane, a composite material or a coating. The present invention also relates to a resin composition comprising at least the copolymer (P1) according to the present invention.

The invention pertains to a side-chain epoxy-functionalized copolymer (P1) and to the process for preparing this copolymer (P1). The present invention also pertains to the use of the copolymer (P1) in the preparation of a membrane, a composite material or a coating. The present invention also relates to a resin composition comprising at least the copolymer (P1) according to the present invention.

Methods of cross-linking or chain extending a polymeric material including a silane-modified poly(arylene ether) polymer (Si-PAE) in a shaped article include heating the shaped article from a temperature T.sub.1 to a temperature T.sub.2>T.sub.1, while maintaining the temperature at which the shaped article is heated within a specified range based on the increasing Tg of the polymeric material during the heating. Shaped articles cross-linked or chain extended by the methods are also described.

A polyphenylene ether bismaleimide resin, a method for manufacturing the same, and a resin composition are provided. The polyphenylene ether bismaleimide (PPE-BMI) resin is obtained by a condensation reaction with a maleic anhydride and a primary amine compound as reactants. The primary amine compound is a polyphenylene ether diamine.

A proton-conducting polymer comprises a plurality of repeating units of formula (I) for electrochemical reactions. The polymer may be synthesized from a super acid catalyzed polyhydroxyalkylation reaction of monomers Ar.sub.1′, Ar.sub.2′, and X.sub.1′ followed by a nucleophilic substitution reaction or a grafting reaction, and optionally an acidification reaction.

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Proton-exchange membranes and membrane electrode assemblies made from the polymer are also described.

A method for producing an aromatic polysulfone by a polycondensation reaction between an aromatic dihalogenosulfone compound and an aromatic dihydroxy compound is described. The polycondensation reaction is performed in the presence of at least one aromatic end-capping agent; and an amount, p mol, of the aromatic dihalogenosulfone compound, an amount, q mol, of the aromatic dihydroxy compound, and an amount, r mol, of the aromatic end-capping agent have a relationship satisfying formula (S1) below and formula (S2) below:
r/(p−q)<2   (S1), and
p>q   (S2).

A method for producing an aromatic polysulfone by a polycondensation reaction between an aromatic dihalogenosulfone compound and an aromatic dihydroxy compound is described. The polycondensation reaction is performed in the presence of at least one aromatic end-capping agent; and an amount, p mol, of the aromatic dihalogenosulfone compound, an amount, q mol, of the aromatic dihydroxy compound, and an amount, r mol, of the aromatic end-capping agent have a relationship satisfying formula (S1) below and formula (S2) below:
r/(p−q)<2   (S1), and
p>q   (S2).

A resin composition includes polyetheretherketone, a polyetheretherketone recycled material, and a filler, wherein a percentage of the recycled material is 25 mass % or higher with respect to a total of the polyetheretherketone and the recycled material; and the filler has a content of from 5 to 30 mass % and has an aspect ratio of from 1 to 3.

Compositions and methods for a semicrystalline poly(aryl ether ketone) copolymers incorporating 2-benzimidazolinone and 4,4′-biphenol as comonomer units with 4,4′-dihalobenzophenone, and compositions and methods for semicrystalline poly(aryl ether ketone) copolymers incorporating 2-benzimidazolinone and 4,4′-biphenol as comonomer units with 1,4-bis(4-dihalobenzoyl)benzene are described herein. The Copolymers have advantageous properties, particularly in terms of high glass transition temperatures (T.sub.g), high melting temperatures (T.sub.m), crystallinity and chemical resistance. The copolymers are suitable for manufacturing high temperature and chemical resistance molded systems and other articles of manufacture via injection molding, extrusion, compression molding, coating, and additive manufacturing.

An oxymethylene copolymer resin composition, which includes (i) an oxymethylene copolymer, (ii) a derivative of an aryl boron fluoride compound, and (iii) a layered double hydroxide; and a method for producing the same.