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Soluble polyaryletherketone and preparation method thereof

A polyaryl ether ketone and aromatic ring technology, applied in the field of engineering polymer material science, can solve the problems of poor solubility and low glass transition temperature, achieve small linear expansion coefficient, high modulus, and solve problems with poor solubility. Effect

Inactive Publication Date: 2012-10-03
WUHAN CONSTANT SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first object of the present invention is to overcome the shortcomings of existing polyether ether ketone (PEEK) resin material glass transition temperature is relatively low and poor solubility, and to provide a kind of soluble polyarylether ketone

Method used

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  • Soluble polyaryletherketone and preparation method thereof
  • Soluble polyaryletherketone and preparation method thereof
  • Soluble polyaryletherketone and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Under the protection of nitrogen, in the reactor equipped with mechanical stirrer, thermometer and condenser, add 261.6 grams of diphenyl sulfone (1.2 moles) and 36 grams of sulfolane (0.3 moles), heat to 60 ℃ after it dissolves, Add 218 grams of 4,4'-difluorobenzophenone (1.0 mol), heat to 80°C to dissolve it, add 169.07 grams of biphenol (0.909 mol), and heat to 120°C to dissolve it, 28.94 grams of phenolphthalein ( 0.091 moles), heated to 150°C to dissolve, and 102.1 grams (0.951 moles) of Na 2 CO 3 and 6.762 g (0.049 mol) K 2 CO 3 Quickly add to the reaction system, stir for 20 minutes to form a salt with diphenol and dissolve, quickly raise the temperature of the system to 180°C, and after 20 minutes of reaction, slowly raise the temperature to 240°C, react for 1 hour, and quickly rise to Increase the temperature to 260°C, and immediately add 4.65 grams of biphenol (0.01 mol) as a chain extender, increase the stirring speed for 1 hour, stop heating, and finally ...

Embodiment 2

[0035] Under the same reaction conditions as in Example 1, the molar ratio of 4,4'-difluorobenzophenone and (biquinone and phenolphthalein) during the first addition was 1: 1.2, and other conditions remained unchanged, namely When charging for the first time, biphenol was 202.74 grams (1.09 moles), and phenolphthalein was 34.66 grams (0.109 moles). The experimental results are shown in Table 1.

Embodiment 3

[0037] Under the same reaction conditions as in Example 1, the molar ratio of 4,4'-difluorobenzophenone and (biquinone and phenolphthalein) during the first addition was 1: 1.5, and other conditions remained unchanged, namely When charging for the first time, biphenol was 252.96 grams (1.36 moles), and phenolphthalein was 43.25 grams (0.136 moles). The experimental results are shown in Table 1.

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Abstract

The invention discloses soluble polyaryletherketone and a preparation method of the soluble polyaryletherketone. The soluble polyaryletherketone is a macromoleclar polymer composed of an ether bond and a ketone group connected with an aromatic ring; the average molecular weight is 15,000; the average melting point is 390 DEG C; the soluble polyaryletherketone is [poly(4,4'-difluoro-benzophenone-biphenyl diphenol)-poly(4,4'-difluoro-benzophenone-phenothalin)] segmented copolymer with high viscosity, high molecular weight, high glass transition temperature and increased dissolubility prepared by carrying out polymerization reaction on three monomers of 4,4'-difluoro-benzophenone, biphenyl diphenol and phenothalin through adopting composite catalyst Na2CO3 (sodium carbonate) / K2CO3 (potassium carbonate) and composite solvent sulfobenzide / sulfolane. The soluble polyaryletherketone disclosed by the invention solves the problems of relatively low glass transition temperature and poor dissolubility of the traditional engineering plastics (such as polyether-ether-ketone). The soluble polyaryletherketone disclosed by the invention can be used for preparing a proton exchange membrane and applied to a high-temperature fuel cell so as to expand the application range.

Description

technical field [0001] The present invention relates to a kind of soluble polyarylether ketone, its standardized chemical name is: [poly(4,4'-difluorobenzophenone-biphenol)-poly(4,4'-difluorodiphenyl Ketone-phenolphthalein)] block copolymer, the present invention also relates to the preparation method of its soluble polyaryletherketone, which belongs to the field of engineering macromolecule material science. Background technique [0002] Polyetheretherketone (PEEK) is one of the typical representatives of polyaryletherketone polymers. As a semi-crystalline (shaped) thermoplastic, it is usually composed of hydroquinone, 4,4'-difluoro Synthesized by high temperature condensation of benzophenone. Due to its good thermal stability, mechanical physical properties, radiation resistance, electrical insulation and other properties, it has broad application prospects in aerospace, automobile manufacturing, electronic appliances and other fields. Therefore, it has received extensiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/40C08G8/02
Inventor 樊李红沙明明李名家黄登峰曹荣辉任芙蓉
Owner WUHAN CONSTANT SCI & TECH
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