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Polymethyl methacrylate monomer high-molecular polymer and preparation method thereof

A kind of technology of polymethyl methacrylate and methyl methacrylate, applied in the field of heat-resistant reinforced polymethyl methacrylate monomer and preparation thereof

Active Publication Date: 2021-04-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the existing polymethyl methacrylate monomer, the object of the present invention is to provide a heat-resistant enhanced polymethyl methacrylate monomer and a preparation method thereof, mainly based on methyl methacrylate monomer Monomer, the vinyl monomer shown in formula (I) is the second monomer, and the cross-linking agent shown in formula (II) carries out ternary copolymerization

Method used

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  • Polymethyl methacrylate monomer high-molecular polymer and preparation method thereof
  • Polymethyl methacrylate monomer high-molecular polymer and preparation method thereof
  • Polymethyl methacrylate monomer high-molecular polymer and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0058]Steps:

[0059](1) ingredient: 80 parts of methyl methacrylate, 14 parts of the monomer II contain a vinyl monomer of triphenyl structure, 6 parts of monomer III, 1 cellophilic, trigger, diodebenzene 0.18 pieces of formyl, 0.15 parts of the chain transfer agent, thirate thiol thiol, thoroughly stirred to mix uniform, adding the nitrogen gas to 20 min to remove oxygen dissolved therein;

[0060](2) Step-by-step polymerization: The reaction temperature is 90 ° C, reacted at 40 min under stirring, and the inner polymer is transferred into a cryogenic reaction vessel, and the reaction temperature is 50 ° C, the reaction time is 32 h, and the temperature is further warmed to 90 ° C, 105 ° C, 120 ° C, each temperature is reacted for 2 hours, and the polymerization conversion is increased, and the residual monomer is reduced.

Embodiment 2

[0062]Steps:

[0063](1) ingredient: 85 parts of methyl methacrylate, 9 parts of the monomer II contain a triphenyl structure, 3 parts of monomer III, 6 parts of Diethylbenzene, initiator-oxide diobenzene 0.18 pieces of formyl, 0.15 parts of the chain transfer agent, thirate thiol thiol, thoroughly stirred to mix uniform, adding the nitrogen gas to 20 min to remove oxygen dissolved therein;

[0064](2) Step-by-step polymerization: The reaction temperature is 90 ° C, reacted at 40 min under stirring, and the inner polymer is transferred into a cryogenic reaction vessel, and the reaction temperature is 50 ° C, the reaction time is 32 h, and the temperature is further warmed to 90 ° C, 105 ° C, 120 ° C, each temperature is reacted for 2 hours, and the polymerization rate is increased.

Embodiment 3

[0066]Steps:

[0067](1) ingredients: 90 parts of methyl methacrylate, 3 parts of the monomer II contain a triphenyl structure, 4 parts of the monomer III, 3, initiator, oxide diobenzene 0.18 pieces of formyl, 0.15 parts of the chain transfer agent, thirate thiol thiol, thoroughly stirred to mix uniform, adding the nitrogen gas to 20 min to remove oxygen dissolved therein;

[0068](2) Step-by-step polymerization: The reaction temperature is 90 ° C, reacted at 40 min under stirring, and the inner polymer is transferred into a cryogenic reaction vessel, and the reaction temperature is 50 ° C, the reaction time is 32 h, and the temperature is further warmed to 90 ° C, 105 ° C, 120 ° C, each temperature is reacted for 2 hours, and residual monomers are reduced.

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Abstract

The invention provides a polymethyl methacrylate high-molecular polymer. The polymethyl methacrylate high-molecular polymer comprises a polymerization reaction product of a methyl methacrylate monomer, a vinyl monomer shown as a formula (I) and a cross-linking agent shown as a formula (II). The polymethyl methacrylate monomer high-molecular polymer provided by the invention can improve the heat resistance and strength of polymethyl methacrylate monomer resin at the same time, and the material has good comprehensive performance.

Description

Technical field[0001]The present invention belongs to the field of polymer materials, and more particularly to a heat-resistant reinforced polymethyl methacrylate monomer and a preparation method thereof.Background technique[0002]Polymethyl methacrylate (PMMA) commonly known organic glass, is a rigid rigid colorless transparent material with excellent optical properties; balanced physical mechanical properties, lightweight, good weather resistance, anti-arc, electric arc Insulationability and processing properties; good chemical stability, widely used in aviation, automotive, optical instruments, electronics, communications, medicine and architectural areas.[0003]PMMA is formed by radical polymerization of methacrylate, and the molecular chain contains thermal unstable structure, which is easy to degraded. The glass transition temperature is low, only 105 ° C, typically heat degradation at 150 ° C, And it is easy to rub the wear during use, resulting in a decrease in transparency, a...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F212/32C08F212/36C08F2/38C08F2/02
CPCC08F220/14C08F2/38C08F2/02C08F212/32C08F212/36
Inventor 张增丽张天宇许春梅赵方园侯丹丹徐伟杨捷
Owner CHINA PETROLEUM & CHEM CORP
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