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High-fluidity polyethersulfoneketone resin and industrial synthesis method thereof

A technology of polyethersulfoneketone and high fluidity, which is applied in the field of high fluidity polyethersulfoneketone resin PESK and its industrial synthesis, can solve the problems of high color and melting point of the product, long polymerization production cycle, and difficult polymerization reaction, etc. Excellent solvent resistance, excellent radiation resistance, and shortened reaction time

Active Publication Date: 2014-03-19
JIANGMEN YOUJU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the proportion of ketone-containing monomers is greater than 30% of the sum of sulfone-based monomers and ketone-based monomers, the polymerization reaction will be more difficult, and the cycle of polymerization production will be longer, which will cause the problem of high color and melting point of the product, especially When the proportion of ketone-containing monomers is greater than 40% of the sum of sulfone-based monomers and ketone-based monomers, the polymerization reaction hardly occurs at a temperature lower than 240°C
When the proportion of the ketone-containing monomer is greater than 25% of the sum of the sulfone-based monomer and the ketone-based monomer, the Tm of the obtained random copolymer is greater than 350°C, and the processing temperature of the resulting product will also reach 380°C or higher , resulting in difficult processing and difficult to be widely used
In addition, the transparency of its products will also decline to a certain extent.

Method used

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  • High-fluidity polyethersulfoneketone resin and industrial synthesis method thereof
  • High-fluidity polyethersulfoneketone resin and industrial synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]In a 200-liter stainless steel reaction kettle equipped with a nitrogen pipe, a condensing water separator and a high-efficiency stirrer, first add 100.00KG sulfolane and start stirring to raise the temperature to 80°C, and then add 19.58 KG 4,4'-dichlorodiphenyl Sulfone, 1.64 KG 4,4'-difluorobenzophenone, 18.77 KG4,4'-dihydroxydiphenyl sulfone, after the monomers are completely dissolved, add 9.0 KG sodium carbonate to the system when the temperature rises to 100°C, Then add 9.0 liters of mesitylene, continue to stir and heat up to 200°C, the salt-forming reaction starts, the water generated in the system azeotropes with mesitylene, cooling water begins to drip from the condenser tube, and layers are separated in the water separator. After the upper layer of mesitylene turns from turbid to clear, continue to reflux for 20 minutes to ensure that the salt formation reaction is complete. The salt formation stage is about 1 hour; after the salt formation is completed, raise ...

Embodiment 2

[0038] Same as Example 1, except that the amount of 4,4'-dichlorodiphenyl sulfone added is 18.49KG and the amount of 4,4'-difluorobenzophenone is 2.45KG, other conditions are the same.

[0039] The resulting PESK resin melt index MI =28.0 g / 10min (350.0°C, 5KG);

[0040] Melting point: 316°C.

Embodiment 3

[0042] Same as Example 1, except that the amount of 4,4'-dichlorodiphenyl sulfone added is 17.40KG and the amount of 4,4'-difluorobenzophenone is 3.0KG, 3,4'-difluorobenzophenone The amount of ketone is 280.0 g, other conditions are the same.

[0043] The resulting PESK resin melt index MI = 15.8 g / 10min (350.0°C, 5KG);

[0044] Melting point: 312°C.

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Abstract

The invention discloses a high-fluidity polyethersulfoneketone (PESK) resin. Aromatic ketone monomers (especially heterogeneous aromatic ketone monomers) are introduced into a PES polymer to carry out copolymerization reactions so as to obtain the high-fluidity polyethersulfoneketone resin, whose main chain comprises a random copolymerization structure composed of poly(aryl ether sulfone) and poly(aryl ether ketone), wherein the mole ratio of poly(aryl ether sulfone) group to poly(aryl ether ketone) group is in a range of (5 to 9):1. The processing temperature and molding temperature of the PESK resin is usually not higher than 350 DEG C; the PESK resin has a high fluidity, is easy to process, and has an excellent solvent-resistant performance; so the product application area is enlarged.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a high-fluidity polyether sulfone ketone resin PESK and an industrial synthesis method thereof. Background technique [0002] Polyaryl ether sulfone is a kind of high-performance engineering plastics, because of their excellent comprehensive properties such as heat resistance, hot water resistance, creep resistance, dimensional stability, impact resistance, chemical resistance, non-toxicity, flame retardancy, etc. Therefore, it has been widely used in the fields of electronics, electrical appliances, machinery, automobiles, medical appliances, food processing and non-stick coatings for a long time. [0003] Industrially important polyarylethersulfones include polyethersulfone (PES) and biphenyl polyethersulfone (PPSU), both of which have high glass transition temperatures (~220 °C). In the process of use, due to the high melt viscosity of polyarylethersulfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/40C08G65/46
Inventor 王贤文
Owner JIANGMEN YOUJU NEW MATERIALS
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