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Method for stabilizing furfurylglycidylether or ester- carbon dioxide copolymer

A technology of furfuryl glycidyl ether and carbon dioxide, which is applied in the field of stabilizing furfuryl glycidyl ether or ester-carbon dioxide copolymer, to achieve the effect of simple and easy method and improvement of crosslinking and discoloration problems

Inactive Publication Date: 2010-09-22
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The research on the stabilization of furfuryl glycidyl ether-carbon dioxide copolymer and furfuryl glycidyl ester-carbon dioxide copolymer in the air by adding antioxidants has not been reported in literature and patents so far

Method used

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  • Method for stabilizing furfurylglycidylether or ester- carbon dioxide copolymer
  • Method for stabilizing furfurylglycidylether or ester- carbon dioxide copolymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 Weigh 5.0g furfuryl glycidyl ether-carbon dioxide copolymer (Mn=13.3×10 4 g / mol; Tg=-1.5°C) was dissolved in 25 g of dichloromethane under stirring at 80 to 100 rpm, and then 0.15 g of 2,4,6-tri-tert-butylphenol was added to the formed polymer solution , that is, antioxidant 246, blended for 1.5 hours under stirring at 80-100 rpm. The polymer solution added with antioxidant was concentrated at 40°C to 1.33KPa in vacuum until no solution dripped out, and then dried in a vacuum oven at 40°C to constant weight.

[0029] The obtained furfuryl glycidyl ether-carbon dioxide copolymer mixed with antioxidant 264 was left in the air at 40° C. for 168 hours without gel and color change, and the color was milky white.

Embodiment 2

[0030] Embodiment 2 Weigh 10.0g furfuryl glycidyl ether-carbon dioxide copolymer (Mn=14.5×10 4 g / mol; Tg=-2.3°C) was dissolved in 50 g of acetone under stirring at 80 to 100 rpm, and then 0.1 g of tetrakis (3,5-di-tert-butyl-4- Hydroxy) pentaerythritol phenylpropionate, i.e. antioxidant 1010 and 0.1g two (2,4-di-tert-butylphenyl) pentaerythritol diphosphite, i.e. antioxidant 626, under the stirring of 80~100rpm, altogether Mix for 1.5 hours. The polymer solution added with antioxidant was concentrated at 40°C to 1.33KPa in vacuum until no solution dripped out, and then dried in a vacuum oven at 40°C to constant weight.

[0031] The obtained furfuryl glycidyl ether-carbon dioxide copolymer mixed with antioxidant 1010 and antioxidant 626 was left in air at 40° C. for 168 hours without gel formation and color change.

Embodiment 3

[0032] Embodiment 3 Weigh 10.0g furfuryl glycidyl ester-carbon dioxide copolymer (Mn=14.5×10 4 g / mol; Tg=-6.5°C) was dissolved in 50 g of dimethyl carbonate under stirring at 80 to 100 rpm, and then 0.3 g of 2,6-di-tert-butyl-p-cresol was added to the formed polymer solution , that is, antioxidant 246, blended for 1.5 hours under stirring at 80-100 rpm. The polymer solution added with antioxidant was concentrated at 40°C to 1.33KPa in vacuum until no solution dripped out, and then dried in a vacuum oven at 40°C to constant weight.

[0033] The obtained furfuryl glycidyl ester-carbon dioxide copolymer mixed with antioxidant 264 was left in air at 40° C. for 168 hours without gel formation and color change.

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Abstract

The invention belongs to a method for stabilizing furfurylglycidylether or ester- carbon dioxide copolymer. The method for blending solution and antioxidant is simple, and can effectively improve the crosslinking and color-changing problems of the furfurylglycidylether or ester- carbon dioxide copolymer under the room temperature. When the antioxidant 264, 246 or 1010 is used alone and the dosage is 3 percent by weight, the copolymer does not produce gel and have color change in the air and under 40 DEG C after 168 hours; and when 1010 and 626 are used together and the dosage is 2 percent by weight, the same effect still can be obtained.

Description

technical field [0001] The present invention belongs to the method for stabilizing furfuryl glycidyl ether or ester-carbon dioxide copolymer. Background technique [0002] In the late 1960s, Professor Inoue Shohei first carried out research on carbon dioxide-epoxide copolymerization (J.Polym.Sci., Polym.Lett.Ed., 7, 287, 1969; Makromol.Chem., 130, 210, 1969). Due to the unique biocompatibility, biodegradability and barrier properties of carbon dioxide-epoxide copolymers, and CO 2 As one of the raw materials for copolymerization, it has attracted great attention from academia and industry. In the 1990s, due to the dwindling of petroleum resources, in order to reduce the dependence of polymer materials on petroleum resources, scientists from all over the world regard seeking to replace petroleum resources with renewable resources to synthesize polymer materials as one of the important research topics. French scientists have successively published relevant discussions on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K5/134C08K5/13C08K5/18C08K5/526
Inventor 王献红胡玉玺赵晓江王佛松乔立军
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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