Polyether-ether-ketone polymer and preparation method thereof

A polyether ether ketone and polymer technology, applied in the field of polyetherether ketone polymers and their preparation, can solve problems such as difficult processing, achieve the effect of increasing cost and improving polymer properties

Inactive Publication Date: 2009-11-04
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a [3,6]-methylene-4 cyclohexene- 4-p-phenol and its derivatives replace p-phenol and introduce its structure into polyetheretherketone polymer

Method used

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  • Polyether-ether-ketone polymer and preparation method thereof
  • Polyether-ether-ketone polymer and preparation method thereof
  • Polyether-ether-ketone polymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 0.0115mol [3,6]-methylene-4cyclohexene-4-hydroquinone and 0.0145mol anhydrous potassium carbonate to a three-necked flask equipped with a magnetic stirrer, an oil-water separator and a thermometer, and add 40mLN , N-dimethylacetamide. After stirring for 0.5 hours at room temperature, add 0.0115mol 4,4'-difluorobenzophenone, add 40mL N,N-dimethylacetamide, then add 40mL water-carrying agent toluene, heat to 130°C, and keep the temperature for 4 hours . Then the temperature was raised to 166° C., and the temperature was maintained for 18 hours to obtain a random polymer. All the above reactions were carried out under nitrogen protection. R is structural formula 1.

[0027] Refining: Pour the random polymer into water, soak for 12 hours, filter, then pour the solid into methanol, soak for 12 hours, and filter. The above process was repeated 5-6 times, and dried in an oven at 110° C. for 12 hours to obtain a refined polymer. (the refining means of the following exa...

Embodiment 2

[0033] Add 0.0115mol [3,6]-methylene-4cyclohexene-4-hydroquinone and 0.0145mol anhydrous potassium carbonate to a three-necked flask equipped with a magnetic stirrer, an oil-water separator and a thermometer, and add 40mLN , N-dimethylacetamide. After stirring at room temperature for 0.5 hours, add 0.0115mol 4,4'-difluorobenzophenone, add 40mL N,N-dimethylacetamide, and then add 40mL water-carrying agent toluene. Heat to 130°C and maintain temperature for 4 hours. Then the temperature was raised to 165° C., and the temperature was maintained for 20 hours to obtain a random polymer. All the above reactions were carried out under nitrogen protection. After further refining steps, refined polymers are obtained. R is structural formula 1.

[0034] Characterization data: Tg (°C): 170, Tm (°C): 351, tensile strength (MPa): 88, elongation at break (%): 95

[0035] IR, cm -1 : 3068, 3002, 2938, 2868, 1651, 1559, 1474, 1230, 1160, 928, 854, 756, 734.

[0036] 1 H NMR, δ: 2.1-2....

Embodiment 3

[0039] Add 0.0115mol [3,6]-methylene-4cyclohexene-4-hydroquinone and 0.0145mol anhydrous potassium carbonate to a three-necked flask equipped with a magnetic stirrer, an oil-water separator and a thermometer, and add 40mLN , N-dimethylacetamide. After stirring at room temperature for 0.5 hours, add 0.0115mol 4,4'-difluorobenzophenone, add 40mL N,N-dimethylacetamide, and then add 40mL water-carrying agent toluene. Heat to 130°C and maintain temperature for 4 hours. Then the temperature was raised to 166° C., and the temperature was maintained for 22 hours to obtain a random polymer. All the above reactions were carried out under nitrogen protection. After further refining steps, refined polymers are obtained. R is structural formula 1.

[0040] Characterization data: Tg (°C): 170, Tm (°C): 350, tensile strength (MPa): 89, elongation at break (%): 95

[0041] IR, cm -1 : 3068, 3002, 2938, 2868, 1651, 1559, 1474, 1230, 1160, 928, 854, 756, 734.

[0042] 1 H NMR, δ: 2.1-2....

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Abstract

The invention relates to engineering plastics, in particular to a polyether-ether-ketone polymer and a synthetic method thereof. The constitutional formula of the polyether-ether-ketone polymer is formula (I) and formula (II), wherein, n ranges from 40-170. The method for preparing the polyether-ether-ketone polymer is as follows: bisphenol monomer and anhydrous potassium carbonate are added into a reactor according to the mol ratio of 1:1.26, and dissolvent, bi-fluoride monomer and toluol are added; and after heating and reaction, steeping and filtration are carried out, and finally drying is executed to obtain the polyether-ether-ketone polymer. The polyether-ether-ketone polymer improves the dissolvability, and maintains fine heat resistance and mechanical property. Tg reaches 170 DEG C, Tm reaches 350 DEG C, the tensile strength reaches 92MPa, and the dissolvability of the polymer is improved so that the polymer can be dissolved in methylene dichloride, trichloromethane, tetrahydrofuran and other normal dissolvents, thereby enduing the polymer with the advantage in terms of processing.

Description

technical field [0001] The invention relates to engineering plastics, in particular to a polyether ether ketone polymer and a preparation method thereof. Background technique [0002] Polyether ether ketone is a new type of semi-crystalline aromatic thermoplastic engineering plastics. The structural formula of polyetheretherketone is: [0003] [0004] Polyether ether ketone is a high temperature resistant thermoplastic, its crystalline structure makes it have outstanding heat resistance and mechanical properties, and it can be used for a long time at 250 °C. Polyetheretherketone not only has better heat resistance than other high-temperature-resistant plastics, but also has outstanding mechanical properties and physical properties. It has high strength, high modulus, high fracture toughness and excellent dimensional stability. [0005] Polyether ether ketone has higher rigidity, better dimensional stability, and smaller linear expansion coefficient, which is very close ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/02
Inventor 刘宾元刘宝兴曲佳燕张旭杨敏
Owner HEBEI UNIV OF TECH
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