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Insoluble and refractory metal modified hyperbranched polymer and preparation method thereof

A hyperbranched polymer and metal modification technology, applied in the field of additives, can solve problems such as the difficulty in processing and molding blends, reduce the impact of rheological properties, and increase the amount of addition

Active Publication Date: 2019-02-01
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the hyperbranched polymer and other polymers blended in the above-mentioned prior art cause difficulties to the processing and molding of the blend, and provide a kind of insoluble and infusible metal that is smoothly processed and formed during blending. Modified hyperbranched polymer and preparation method thereof

Method used

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  • Insoluble and refractory metal modified hyperbranched polymer and preparation method thereof
  • Insoluble and refractory metal modified hyperbranched polymer and preparation method thereof
  • Insoluble and refractory metal modified hyperbranched polymer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0046] A kind of insoluble infusible metal-modified hyperbranched polymer, preparation steps are as follows:

[0047] (1) Using A 2 +B 3 The synthetic method prepares the hyperbranched polymer that terminal group contains carboxyl group: Wherein A 2 Is pyrazine-2,3-dicarboxylic acid; B 3 is 1,1,1-tris(hydroxymethyl)propane;

[0048] The prepared hyperbranched polymer molecule containing carboxyl groups in the end groups contains ester groups, the number of carboxyl groups accounts for 25% of the total amount of end groups, the degree of branching is 60%, and the weight average molecular weight is 2000g / mol;

[0049] (2) the end group containing carboxyl hyperbranched polymer is dissolved in chloroform to obtain a concentration of 0.7mol / L end group containing hyperbranched polymer solution, cobalt acetate is dissolved in deionized water to obtain a concentration of 0.8mol / L The metal ion solution of L;

[0050] (3) Under the mechanical stirring of 200rpm and the ultrasoni...

Embodiment 2

[0054] A kind of insoluble infusible metal-modified hyperbranched polymer, preparation steps are as follows:

[0055] (1) Using A 2 +B 3 The synthetic method prepares the hyperbranched polymer that terminal group contains carboxyl group: Wherein A 2 For: 2-carboxyethylphenylphosphinic acid; B 3 For: three (2-carboxyethyl) isocyanurate;

[0056] The prepared hyperbranched polymer molecule containing carboxyl groups in the end groups contains ester groups, the number of carboxyl groups accounts for 27% of the total amount of end groups, the degree of branching is 53%, and the weight average molecular weight is 43000g / mol;

[0057] (2) the end group containing carboxyl hyperbranched polymer is dissolved in acetone to obtain a concentration of 0.85mol / L end group containing hyperbranched polymer solution of carboxyl, nickel acetate is dissolved in deionized water to obtain a concentration of 0.95mol / L The metal ion solution of L;

[0058] (3) Under the magnetic stirring of 30...

Embodiment 3

[0062] A kind of insoluble infusible metal-modified hyperbranched polymer, preparation steps are as follows:

[0063] (1) Using A 2 +B 3 The synthetic method prepares the hyperbranched polymer that terminal group contains carboxyl group: Wherein A 2 For: 5-tert-butyl-1,3-benzenedicarboxylic acid; B 3 For: 2,4,5-trihydroxybutyrophenone;

[0064]The prepared hyperbranched polymer molecule containing carboxyl groups in the end groups contains ester groups, the number of carboxyl groups accounts for 25% of the total amount of end groups, the degree of branching is 30%, and the weight average molecular weight is 15000g / mol;

[0065] (2) the hyperbranched polymer solution containing carboxyl group in the end group is dissolved in N,N-dimethylformamide to obtain a concentration of hyperbranched polymer solution containing carboxyl group in the end group of 0.9mol / L, copper acetate is dissolved in the A metal ion solution with a concentration of 1.0mol / L was obtained in ionized wa...

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Abstract

The invention relates to an insoluble and refractory metal modified hyperbranched polymer and a preparation method thereof. The insoluble and refractory metal modified hyperbranched polymer is prepared by dropwise adding an acetic acid metal salt solution into a carboxyl-terminated hyperbranched polymer solution, the metal modified hyperbranched polymer is a network polymer formed by crosslinkinga carboxyl-terminated hyperbranched polymer with metal ions, has insoluble and refractory properties, is insoluble in most of organic solvents at the temperature of lower than 80 DEG C and is refractory in a range from the room temperature to the temperature T, wherein T is larger than or equal to 370 DEG C, and crosslinking is realized in ways that acid radical ions at terminals of molecules of the carboxyl-terminated hyperbranched polymer are connected with the metal ions by ionic bonds while oxygen atoms on double bonds inside the molecules of the carboxyl-terminated hyperbranched polymer are connected with the metal ions by coordinate bonds. By using the method disclosed by the invention, the problem that it is difficult to process and mold a blend when the hyperbranched polymer is blended is solved, the prepared metal modified hyperbranched polymer has the insoluble and refractory properties under a general processing condition.

Description

technical field [0001] The invention belongs to the field of additives, and relates to an insoluble and infusible metal-modified hyperbranched polymer and a preparation method thereof. Background technique [0002] Hyperbranched polymers such as hyperbranched polyesters have a highly branched molecular structure and are widely used in the field of polymer blending, such as blending hyperbranched polyesters with flame retardants, etc. Hyperbranched polymers are often used as viscosity modifiers Widely used in various fields of industrial production. [0003] There are many synthetic methods of hyperbranched polymers. According to the type of monomer, they can be divided into two categories: one is the monomer method (SMM), which mainly uses AB n type or potential AB n The other type is the dual monomer method (DMM), which requires two monomers or a pair of monomers to polymerize. The common dual monomer method mainly includes A 2 +B 3 monomer polymerization. The synthesi...

Claims

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Application Information

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IPC IPC(8): C08G83/00
CPCC08G83/006
Inventor 孙宾邓锋朱美芳曾婷江晓泽吉亚丽于海龙
Owner DONGHUA UNIV
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