Reactive group-contained comb-type graft copolymer, and preparation method and application thereof

A technology of graft copolymer and reactive group, applied in the field of comb-shaped polymethyl acrylate containing reactive group and preparation thereof

Active Publication Date: 2015-05-13
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, a single polymer is difficult to meet these high-performance requirements

Method used

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  • Reactive group-contained comb-type graft copolymer, and preparation method and application thereof
  • Reactive group-contained comb-type graft copolymer, and preparation method and application thereof
  • Reactive group-contained comb-type graft copolymer, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0066] Under a nitrogen atmosphere, 90 g of methyl methacrylate (0.9 mol), 10 g of glycidyl methacrylate (0.07 mol), 4 g of mercaptoethanol (0.05 mol), 2.5 g of 4,4' as polymerization initiator-6 - Azobis(4-cyanopentanol) and 100 g of tetrahydrofuran as a solvent were uniformly mixed, and the temperature of the reactor was raised to 70° C. for 5 hours. Then the reaction device was cooled to 0°C, 10g triethylamine (0.1mol), 8g methacryloyl chloride (0.08mol) were added to the reaction system, reacted at 0°C for 4 hours, and the solvent was removed under reduced pressure to obtain a large Molecular monomer B is denoted as M-2000 (E-0.1), the molecular weight of macromolecular monomer B is 2000, and the mass fraction of epoxy is 10%.

Embodiment 1-2

[0068] Under a nitrogen atmosphere, 70 g methyl methacrylate (0.7 mol), 30 g glycidyl methacrylate (0.21 mol), 3.6 g mercaptoethanol (0.21 mol), 2.4 g of 4,4 as polymerization initiator-6 '-Azobis(4-cyanopentanol) and 100 g of tetrahydrofuran as a solvent were uniformly mixed, and the temperature of the reactor was raised to 70° C. for 5 hours. Then the reaction device was cooled to 0°C, 10g triethylamine (0.1mol) and 8g methacryloyl chloride (0.08mol) were added to the reaction system, reacted at 0°C for 4 hours, and then the solvent was removed under reduced pressure to obtain The macromonomer B is denoted as M-2000 (E-0.3), the molecular weight of the macromonomer B is 2000, and the mass fraction of epoxy is 30%.

Embodiment 1-3

[0070] Under a nitrogen atmosphere, 40 g methyl methacrylate (0.4 mol), 60 g glycidyl methacrylate (0.42 mol), 3.2 g mercaptoethanol (0.04 mol), 1.9 g of 4,4 as polymerization initiator-6 '-Azobis(4-cyanopentanol) and 100 g of tetrahydrofuran as a solvent were uniformly mixed, and the temperature of the reactor was raised to 70° C. for 5 hours. Then the reaction device was cooled to 0°C, 10g triethylamine (0.1mol) and 8g methacryloyl chloride (0.08mol) were added to the reaction system, reacted at 0°C for 4 hours, and then the solvent was removed under reduced pressure to obtain The macromonomer B is denoted as M-2000 (E-0.6), the molecular weight of the macromonomer B is 2000, and the mass fraction of epoxy is 60%.

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Abstract

The invention discloses a reactive group-contained comb-type graft copolymer, and a preparation method and application thereof. A small molecular monomer A and a macromolecular monomer B are copolymerized to form the comb-type graft copolymer with the small molecular monomer A as a main chain and the macromolecular monomer B as a side chain; the weight of the macromolecular monomer B accounts for 0.1-80wt% of the mass of the comb-type graft copolymer; the weight of the small molecular monomer A accounts for 99.9-20wt% of the mass of the comb-type graft copolymer. The reactive group-contained comb-type graft copolymer is the comb-type graft copolymer containing a reactive group on the side chain, and can be used as a compatibilizer and a chain extender.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a comb-shaped graft copolymer containing reactive groups and its preparation method and application, in particular to a comb-shaped polymethyl (meth)acrylate containing reactive groups and its Preparation methods and applications. Background technique [0002] Comb graft copolymers are composed of two different polymer chains connected by chemical bonds. One of them is a polymer backbone (skeleton) composed of A units, that is, the main chain; the other is a polymer branch composed of B units, that is, side chains. There are three ways to combine side chains to the main chain through covalent bonds, namely Graft to, Graft through and Graft from. The so-called Graft through method is to first synthesize the side chain of the macromolecule, and use the polymerization method to polymerize the macromonomer with double bonds or other reactive groups at the end to prepare the comb-shap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/04C08F220/14C08F220/18C08L67/04C08L27/16C08L51/00C09J151/00C09D151/00
Inventor 李勇进董文勇任方璐
Owner HANGZHOU NORMAL UNIVERSITY
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