C08G2650/10

POLY(ARYLENE ETHER) COPOLYMER, METHOD TO PREPARE THE SAME, AND ARTICLE DERIVED THEREFROM
20230227606 · 2023-07-20 ·

A capped poly(arylene ether) copolymer includes a reactive end group, wherein the capped poly(arylene ether) copolymer is derived from an alkyl, aryl-phenol.

HYDROSILYLATION METHOD

Vinyl-functional alcohols are silylated by reaction with a hydrolysable silyl hydride compound. The starting alcohol is heated and then combined with the silyl hydride and catalyst and allowed to heat exothermically. Cooling is applied when the conversion of vinyl groups is between 90-99%. In some embodiments, specified amounts of water are present. The cooling regimen and control of water content reduces certain side reactions, leading to greater yields to desired product.

CURABLE COMPOSITION, AND CURED PRODUCT

The curable composition is a curable composition containing an oxyalkylene polymer A having a reactive silicon group represented by —SiR.sub.a(X).sub.3-a, wherein the oxyalkylene polymer A has 6 or more terminal groups per molecule; the terminal group contains at least one selected from the group consisting of a reactive silicon group represented by —SiR.sub.a(X).sub.3-a, an active hydrogen-containing group, and an unsaturated group; the oxyalkylene polymer A has 0.3 or more reactive silicon groups per terminal group; and the number average molecular weight of the oxyalkylene polymer A is more than 25,000 and not more than 100,000.

Catalyst for aminating polyether polyol and preparation method thereof and method of preparing polyetheramines using catalyst thereof

The present invention relates to a catalyst for aminating a polyether polyol and preparation method thereof and a method of preparing a polyetheramine using the catalyst. The catalyst has active components and a carrier. The active components are Ni, Cu, and Pd. The method of preparing the catalyst comprises the following steps: using a metal solution or a metal melt impregnated carrier, obtaining a catalyst precursor; and drying and calcinating the obtained catalyst precursor, so as to obtain a catalyst. By introducing the active component Pd in the catalyst, the present invention clearly improves selectivity of an amination catalyst with respect to a preaminated product, and increases raw material conversion rate.

METHODS OF FORMING DYNAMIC CROSS-LINKED POLYMER COMPOSITIONS USING FUNCTIONAL CHAIN EXTENDERS UNDER BATCH PROCESS

Provided herein are methods for preparing dynamic cross-linked polymer compositions derived from an ester oligomer component, a chain extender component, and one or more of a transesterification or poly condensation catalyst are described. The dynamic cross-linked polymer compositions may be prepared via melt poly condensation.

AMPHIPHILIC BLOCK COPOLYMER AND COATING ARRANGEMENT

The disclosure relates to an amphiphilic block copolymer comprising a first block consisting of a polymeric hydrophilic domain, wherein the polymeric hydrophilic domain consists of a polyglycerol; an optional second block consisting of a hydrophobic domain and a first linker domain, wherein the second block is covalently bound to the first block via the first linker domain, an optional third block consisting of a catechol domain and a second linker domain, wherein the third block is covalently bound to the first block via the second linker domain; and a fourth block consisting of a crosslinking domain and a third linker domain, wherein the fourth block is covalently bound to the first block via the third linker domain, wherein the crosslinking domain comprises a reactive residue enabling a crosslinking between individual molecules of the amphiphilic block copolymer.

Hydrosilylation method

Vinyl-functional alcohols are silylated by reaction with a hydrolysable silyl hydride compound. The starting alcohol is heated and then combined with the silyl hydride and catalyst and allowed to heat exothermically. Cooling is applied when the conversion of vinyl groups is between 90-99%. In some embodiments, specified amounts of water are present. The cooling regimen and control of water content reduces certain side reactions, leading to greater yields to desired product.

CATALYST FOR AMINATING POLYETHER POLYOL AND PREPARATION METHOD THEREOF AND METHOD OF PREPARING POLYETHERAMINES USING CATALYST THEREOF

The present invention relates to a catalyst for aminating a polyether polyol and preparation method thereof and a method of preparing a polyetheramine using the catalyst. The catalyst has active components and a carrier. The active components are Ni, Cu, and Pd. The method of preparing the catalyst comprises the following steps: using a metal solution or a metal melt impregnated carrier, obtaining a catalyst precursor; and drying and calcinating the obtained catalyst precursor, so as to obtain a catalyst. By introducing the active component Pd in the catalyst, the present invention clearly improves selectivity of an amination catalyst with respect to a preaminated product, and increases raw material conversion rate.

Fatty Alcohol Polyether Amine Polyether and Preparation Method and Application Thereof
20240409688 · 2024-12-12 ·

The disclosure belongs to the technical field of organic macromolecule compound preparation, and discloses a fatty alcohol polyether amine polyether and a preparation method and application thereof. The method includes: using a fatty alcohol as an initiator, and adding a first epoxy compound for a polymerization reaction to obtain a fatty alcohol polyether; then, taking a hydroamination reaction between the fatty alcohol polyether and liquid ammonia to obtain a fatty alcohol polyether amine; and finally, taking a polymerization reaction between the fatty alcohol polyether amine and a second epoxy compound to obtain the fatty alcohol polyether amine polyether. The fatty alcohol polyether amine polyether prepared by the disclosure has the advantages of safety, nontoxicity, no skin stimulation, biodegradability, high compatibility, green and environmental-friendly effects, etc., and can be used for preparing quaternary ammonium salt intermediate products and various industrial solvents.

NOVEL POLY(ARYLENE ETHER) RESIN AND PREPARATION METHOD THEREFOR
20250092198 · 2025-03-20 ·

The present application discloses a novel poly(arylene ether) resin, having a number average molecular weight of 1000-4000, preferably 2000-3000, and a structural formula shown in Formula (1) below. In Formula (1), R1, R2, R3, and R4 are selected from hydrogen, halogen or C.sub.1-C.sub.12 alkyl; R5 and R6 are selected from hydrogen or methyl; R7-R9 are selected from hydrogen or C.sub.1-C.sub.18 alkyl; and m and n are integers of 1 to 50. The present application further discloses a method for preparing the novel poly(arylene ether) resin, including the following steps: adding poly(arylene ether) and a polyphenol compound to a good solvent of poly(arylene ether), then adding peroxide to carry out a first reaction, cooling the mixture after the completion of the first reaction, and pouring the obtained first reaction liquid into a poor solvent to precipitate bis(hydroxyl) poly(arylene ether); and then adding a blocking agent and a catalyst to carry out a second reaction, and after the completion of the second reaction, pouring the obtained reaction liquid into the poor solvent to precipitate the novel poly(arylene ether) resin shown in Formula (1).

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