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A kind of amino-terminated soluble polyaryletherketone and its preparation method and application

A polyaryletherketone and amino-terminated technology, which is applied in the field of amino-terminated soluble polyaryletherketone and its preparation, can solve the problem of inability to improve the adhesion between epoxy resin-based coatings and polyaryletherketone resins or their composite materials , to achieve the effects of solidification, environmental friendliness, cost reduction, and good affinity

Active Publication Date: 2021-12-28
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is simple to operate and easy to implement, but the reactivity of hydroxyl and epoxy-based coatings is much smaller than that of amino groups, so this method cannot be used to improve the adhesion between epoxy resin-based coatings and polyaryletherketone resins or their composite materials

Method used

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  • A kind of amino-terminated soluble polyaryletherketone and its preparation method and application
  • A kind of amino-terminated soluble polyaryletherketone and its preparation method and application
  • A kind of amino-terminated soluble polyaryletherketone and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Under the protection of nitrogen atmosphere, add 403g sulfolane (solid content 10wt%), 160mL toluene, 15.9g (150mmol) sodium carbonate, 29.33g (100mmol) difluoromonomer 1 and 11.01g ( 100mmol) Bisphenol monomer 1, heat up to 140°C, azeotropically remove water, reflux for 2h, remove toluene in the reaction system by distillation, heat up to 180-210°C and react for 2h for polymerization, after the polymerization, cool down to 140°C Add 1.08g (5mmol) end-capping agent 1 and react for 2h, pour the reaction product into anhydrous methanol, wash, pulverize and dry to obtain 36.25g polymer 1, then dissolve polymer 1 in 300mL tetrahydrofuran, and wait for the polymer After 1 was completely dissolved, 200 mL of hydrochloric acid solution with pH=0.1 was added to the solution, and after reflux for 24 hours, it was washed with ethanol and water and dried to obtain 27.45 g of amino-terminated crystalline polyaryletherketone polymer 2 powder.

[0040] (2) Lay 5.00 g of crystalli...

Embodiment 2

[0044] (1) Under nitrogen atmosphere protection, add 588g sulfolane (solid content 10wt%), 233mL toluene, 21.8g (150mmol) potassium carbonate, 47.25g (100mmol) difluoromonomer 2 and 13.21g ( 120mmol) bisphenol monomer 1, heat up to 140°C, azeotropically remove water, reflux for 2h, remove the toluene in the reaction system by distillation, then raise the temperature to 180-210°C for 3h to polymerize, after the polymerization is completed, cool down to 140°C Add 2.26g (10mmol) end-capping agent 1 and react for 4h, pour the reaction product into anhydrous methanol, wash, pulverize and dry to obtain 52.18g polymer 3, then dissolve polymer 3 in 400mL tetrahydrofuran, and treat the polymer After 3 was completely dissolved, 200 mL of hydrochloric acid solution with pH=0.1 was added to the solution, and after reflux for 24 hours, it was washed with ethanol and water and dried to obtain 41.88 g of amino-terminated crystalline polyaryletherketone polymer 4 powder.

[0045] (2) Lay 5.00...

Embodiment 3

[0048] (1) Under the protection of nitrogen atmosphere, add 670g sulfolane (solid content 10wt%), 233mL toluene, 16.6g (157mmol) sodium carbonate, 2.68g (8mmol) cesium carbonate, 54.86g (100mmol) biscarbonate successively to the polymerization reaction system Fluorine monomer 3 and 11.01g (100mmol) bisphenol monomer 1 were heated up to 140°C, azeotropically removed water, and refluxed for 4h. After removing toluene in the reaction system by distillation, the temperature was raised to 180-210°C for 3h for polymerization. After the polymerization, the temperature was lowered to 140°C and 4.73g (22mmol) of end-capping agent 1 was added to react for 4h, and the reaction product was poured into anhydrous methanol for washing, pulverized and dried to obtain 61.13g of polymer 5, and 1.5g of polymer 5 Dissolve in 15mL tetrahydrofuran, hydrolyze after spreading film by casting method, add 10mL hydrochloric acid solution with pH=0.1, reflux for 24-48h, then wash with ethanol and water an...

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Abstract

The invention provides an amino-terminated soluble polyaryletherketone, which is prepared by the following method: under a nitrogen atmosphere, sequentially add a solvent, a water-carrying agent, a salt-forming agent, an imidized difluoromonomer, and bisphenol The monomer and the end-capping agent are reacted, and after crushing, washing and drying, the amino-terminated soluble polyaryletherketone is obtained; the amino-terminated soluble polyaryletherketone Introducing polyaryletherketone materials or polyaryletherketone composite materials to obtain amino-terminated crystalline polyaryletherketone modified polyaryletherketone materials or polyaryletherketone composite materials, this method is easy to implement and realizes industrial production Partial modification of large devices; the modified polyaryletherketone material or polyaryletherketone composite material can be directly cured and crosslinked with epoxy-based coatings at room temperature without a catalyst, and the adhesion is greater than or equal to 4B. The curing reaction conditions Mild, friendly to the curing environment, reducing the cost of equipment operation.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an amino-terminated soluble polyaryletherketone and its preparation method and application. Background technique [0002] Crystalline polyaryletherketones are a class of crystalline polymers in which phenylenes are connected through ether bonds and carbonyl groups, including polyether ether ketone (PEEK), polyether ketone ketone (PEKK), polyetherether ketone ketone (PEEKK ) and polyether ketone ether ketone ketone (PEKEKK) and so on. This type of resin usually has excellent thermal stability, flame retardancy, mechanical properties, electrical insulation properties and chemical stability, and is widely used in various fields due to these excellent properties. In the field of aerospace, polyaryletherketone resin-based composites reinforced with carbon fiber and glass fiber can be used in aircraft and spacecraft cabins and helicopter tails. [0003] Epoxy resin is a kind of therm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/40C08L71/10
CPCC08G65/4031C08L71/00C08L2201/08
Inventor 王贵宾施霁瑶杨砚超栾加双张淑玲王晟道
Owner JILIN UNIV