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Polar monomer polymerization or polar monomer and non-polar monomer copolymerization method

A technology of non-polar monomers and polar monomers, which is applied in the field of polymer material preparation and can solve problems such as unsatisfactory effects

Inactive Publication Date: 2007-09-12
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] When the catalytic system used in these copolymerization methods is used for the copolymerization of polar monomers, the effect is not ideal
Catalyzing the polymerization of polar vinylic monomers to prepare homopolymers and copolymers, and catalyzing the copolymerization of polar vinylic monomers / non-polar vinylic monomers in a catalytic system composed of metallocene compounds / metals / epoxy compounds There is no report on the preparation of its copolymer

Method used

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  • Polar monomer polymerization or polar monomer and non-polar monomer copolymerization method
  • Polar monomer polymerization or polar monomer and non-polar monomer copolymerization method
  • Polar monomer polymerization or polar monomer and non-polar monomer copolymerization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] After vacuumizing the dry 200ml glass reactor to deoxygenate and dehumidify, mix 5ml dioxane (solvent), dicyclopentadienyl titanium dichloride (Cp 2 TiCl 2 ) 0.065g (0.262mmol), 1.31mmol reducing agent metal zinc, and 0.262mmol epoxy compound propylene oxide were added to the reactor and stirred for 5 minutes. Warm up to room temperature, add 4ml of freshly distilled methyl methacrylate, stir, raise the temperature to 70°C, and react for 7 hours. The reaction was terminated with ethanol dilute hydrochloric acid solution. Filter, wash with distilled water until neutral, and dry in vacuum to obtain 2.20 g of the product.

Embodiment 2

[0026] After vacuumizing the dry 200ml glass reactor to deoxygenate and dehumidify, mix 5ml dioxane (solvent), dicyclopentadienyl titanium dichloride (Cp 2 TiCl 2 ) 0.065g (0.262mmol), 1.31mmol reducing agent metal zinc, and 0.131mmol epoxy compound 1,8-diepoxypropyl-2,6-octyl ether were added to the reactor and stirred for 5 minutes. Warm up to room temperature, add 4ml of freshly distilled methyl methacrylate, stir, raise the temperature to 70°C, and react for 7 hours. The reaction was terminated with ethanol dilute hydrochloric acid solution. Filter, wash with distilled water until neutral, and dry in vacuum to obtain 2.10 g of the product.

Embodiment 3

[0028] After vacuumizing the dry 200ml glass reactor to deoxygenate and dehumidify, mix 5ml dioxane (solvent), dicyclopentadienyl titanium dichloride (Cp 2 TiCl 2 ) 0.065g (0.262mmol), 1.31mmol reducing agent metal zinc, and 0.262mmol epoxy compound 2,3-epoxypropyl-4-methoxyphenyl ether (MPEG4) were added to the reactor and stirred for 5 minutes. Warm up to room temperature, add 4ml of freshly distilled methyl methacrylate, stir, raise the temperature to 70°C, and react for 7 hours. The reaction was terminated with ethanol dilute hydrochloric acid solution. Filter, wash with distilled water until neutral, and dry in vacuum to obtain 2.30 g of the product.

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Abstract

A polymerization method for polar vinyl monomers or polar and non-polar monomers belongs to the field of high polymer materials. Under the protection of nitrogen or inert gas, and the temperature of -80 to 100deg.C, the method mixes the metallocene compound, metal reductant 0.1~20 molar equivalent of metallocene compound and epoxy compound 0.1~5 molar equivalent of metallocene compound in the organic solvent fully together to make catalyst, then adds the mixture of organic solvent, polar vinyl or non-polar monomer and polar vinyl monomer to react for 5~1,000 minutes under -50 to 200deg.C, finally, uses alcohol acid solution to finish the reaction, filtering, washing to be neutral with water, vacuum drying, and obtaining the product.

Description

technical field [0001] A method for the polymerization of polar monomers or the copolymerization of polar monomers and non-polar monomers, belonging to the field of polymer material preparation, in particular to the preparation and polarity of metallocene compound / metal / epoxy compound catalyst systems Vinyl monomers, methods for polymerizing polar vinyl monomers / non-polar vinyl monomers and synthesis of polymers thereof. Background technique [0002] Due to the lack of polar groups in its molecular chain, the application of polyolefin materials in some fields is limited. At present, the main method of polyolefin modification is to introduce polar groups on the polyolefin chain, so as to improve and enhance the adhesion, moisture absorption performance and compatibility with other materials of polyolefin materials, and realize the functionalization of polyolefin materials. . [0003] Because the exposed metal active centers of traditional Z-N catalysts are very easy to comb...

Claims

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Application Information

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IPC IPC(8): C08F20/06C08F20/56C08F20/10C08F20/44C08F4/54
Inventor 黄启谷盛亚平马利福
Owner BEIJING UNIV OF CHEM TECH