Random copolymer containing biphenyl structural polyether sulfone and polyether ketone sulfone and preparation method thereof

A technology of random copolymer and polyether ether sulfone, which is applied in the field of preparation of random copolymers containing biphenyl structure polyether ether sulfone and polyether ketone ether sulfone, can solve the problem that the mechanical properties are inferior to polyaryl ether ketone, the price is high, and the Problems such as low processing temperature, to achieve the effect of reducing the glass transition temperature transition value, reducing the preparation cost and increasing the cost

Inactive Publication Date: 2009-09-30
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyarylethersulfone also has some disadvantages: as a thermoplastic, polyarylethersulfone is still sensitive to certain solvents, especially under stress; when loaded at higher temperatures, polyarylethersulfone will Creep occurs
The glass transition temperature of polyarylether ketone is not high enough, the processing temperature is high

Method used

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  • Random copolymer containing biphenyl structural polyether sulfone and polyether ketone sulfone and preparation method thereof
  • Random copolymer containing biphenyl structural polyether sulfone and polyether ketone sulfone and preparation method thereof
  • Random copolymer containing biphenyl structural polyether sulfone and polyether ketone sulfone and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: Synthesis of polyether ether sulfone and polyether ketone ether sulfone random copolymer containing biphenyl structure.

[0018] 4,4'-dichlorodiphenylsulfone (5.6400g), 4,4'-dihydroxybiphenyl (3.6800g) and 4,4'-dihydroxybenzophenone (0.4280g), anhydrous potassium carbonate ( 3.3120g), sulfolane as a solvent (40ml), toluene or xylene as a water-carrying agent (20ml) is added to a four-neck flask equipped with a mechanical stirrer and a thermometer, protected by nitrogen, heated until the toluene begins to reflux, and maintain the temperature with xylene The water produced in the reaction was taken out, and after the water output reached the theoretical value of 7.2 mL, the excess xylene was distilled off, and then reacted for 4 hours under reflux of the solvent to obtain a polymer. Pour the crude product into water, filter, boil the solid directly with acetone boiling method, filter, repeat 5-6 times, then boil with distilled water, filter, repeat 5-6 times, d...

Embodiment 2

[0019] Example 2: Synthesis of random copolymers of polyether ether sulfone and polyether ketone ether sulfone containing biphenyl structure.

[0020] 4,4'-dichlorodiphenylsulfone (5.6400g), 4,4'-dihydroxybiphenyl (1.8600g) and 4,4'-dihydroxybenzophenone (2.1400g), anhydrous potassium carbonate ( 3.3120g), sulfolane (40ml), toluene or xylene as a water-carrying agent (20ml) are added to a four-neck flask equipped with a mechanical stirrer and a thermometer, protected by nitrogen, heated until the toluene begins to reflux, and the temperature is maintained with xylene to carry out For the water generated in the reaction, after the water output reached 7.2 mL, the excess xylene was distilled off, and then reacted for 4 hours under reflux of the solvent to obtain a polymer. Pour the crude product into water, filter, boil the solid directly with acetone boiling method, filter, repeat 5-6 times, then boil with distilled water, filter, repeat 5-6 times, dry in oven to obtain refined...

Embodiment 3

[0021] Example 3: Synthesis of polyether ether sulfone and polyether ketone ether sulfone random copolymer containing biphenyl structure

[0022] Just change the sulfolane in Example 1 to NMP, and the rest are the same as the method in Example 1, and the polymer of the present invention can also be obtained. Just change NMP into sulfolane in Example 2, and the rest are identical to the method in Example 1, and the polymer of the present invention can also be obtained. It shows that using sulfolane or NMP as solvent, the effect is basically the same.

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Abstract

The invention relates to a random copolymer containing biphenyl structural polyether sulfone and polyether ketone sulfone and a preparation method thereof, and belongs to the field of high molecular materials. The preparation method comprises the following steps: using 4,4'-dichlorodiphenyl sulfone, 4,4'-dihydroxy biphenyl and 4,4'-dihydroxy diphenyl ketone as raw materials, anhydrous potassium carbonate as salt forming agent, N-methyl ketopyrrolidine or cyclobutyl sulfone as solvent, and methylbenzene or dimethyl benzene as water carrier; adding the raw materials, the salt forming agent, the solvent and the water carrier into a container provided with a mechanical stirrer and a thermometer, under the protection of nitrogen, heating the mixture to reflow with water, vaporizing redundant water carrier, and reacting the mixture for 4 hours at a temperature of between 160 and 240 DEG C to obtain a coarse product; and boiling the coarse product with ethanol or acetone, filtering the mixture, boiling the filtrate with distilled water, filtering the mixture, and drying the sediment to obtain a refined polymer product. The polymer has good compatibility for polyaryletherketone and polyarylethersulfone; and the preparation method is simple and convenient and has low cost.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to the preparation technology of polyether ether sulfone and polyether ketone ether sulfone random copolymers containing biphenyl structure Background technique [0002] Biphenyl-containing polyether ether sulfone is a special functional plastic with excellent performance. It has comprehensive characteristics such as good heat resistance, high mechanical strength, and excellent electrical properties. It has been widely used in many industrial fields. However, polyarylethersulfone also has some disadvantages: as a thermoplastic, polyarylethersulfone is still sensitive to certain solvents, especially under stress; when loaded at higher temperatures, polyarylethersulfone will Creep occurs. These disadvantages limit the application of biphenyl polyether ether sulfone when resistance to certain specific solvents and high temperature dimensional stability are required. However, compared...

Claims

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Application Information

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IPC IPC(8): C08G75/23
Inventor 姜振华岳喜贵王贵宾关绍巍
Owner JILIN UNIV
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