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Method for preparing polyaryl ether ketone sulfone random copolymer through quaternary copolycondensation technology

A tetrapolymer and co-condensation technology, which is applied in the field of tetrapolymer random copolymers, can solve the problems of difficult control of the ternary and quaternary copolymerization reaction process, wide range of polymer molecular weight distribution, and difficulty in industrialization, etc., to achieve molecular weight distribution. Narrow range, improved thermal stability or solvent resistance, good end-capping effect

Active Publication Date: 2016-02-24
JIANGMEN YOUJU NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the process of ternary and quaternary copolymerization is not easy to control, and the obtained polymer has a wide range of molecular weight distribution and deep color, so it is difficult to industrialize

Method used

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  • Method for preparing polyaryl ether ketone sulfone random copolymer through quaternary copolycondensation technology
  • Method for preparing polyaryl ether ketone sulfone random copolymer through quaternary copolycondensation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] In a 1-liter four-neck flask equipped with a nitrogen tube and a high-efficiency stirrer, first add 336.00g of diphenyl sulfone, 108.000g of 4,4'-difluorobenzophenone, 0.931g of biphenol, 1.438g of 4,4' - After dichlorodiphenyl sulfone and 63.600g sodium carbonate, start to heat up until the monomers are completely dissolved, then add 54.500g hydroquinone to the system, continue stirring evenly, then raise the temperature to 210°C-220°C, and react for 1-2 hours , raise the temperature to 240°C-270°C, react for 0.5-2 hours, then raise the temperature to 310°C-320°C to polymerize for 1-4 hours, add 0.7g of 3,4'-difluorobenzophenone, and continue the reaction for 10-30 minutes, Polymerized slime is obtained; the polymerized slime is water-cooled and pulverized into powder, then the filtered powder is added to ethanol and boiled under reflux for 1 hour, and this is repeated 10 times, and then boiled with new deionized water for 1 hour, and this is repeated 8 to 10 times unti...

Embodiment 2

[0043] In a 1-liter four-neck flask equipped with a nitrogen tube and a high-efficiency stirrer, first add 336.00 g of diphenyl sulfone, 1.090 g of 4,4'-difluorobenzophenone, 0.931 g of biphenol, 142.400 g of 4,4' - After dichlorodiphenyl sulfone and 63.600g sodium carbonate, start to heat up until the monomers are completely dissolved, then add 54.500g hydroquinone to the system, continue stirring evenly, then raise the temperature to 210°C-220°C, and react for 1-2 hours , raise the temperature to 240°C-270°C, react for 0.5-2 hours, then raise the temperature to 310°C-320°C to polymerize for 1-4 hours, add 0.7g of 3,4'-difluorobenzophenone, and continue the reaction for 10-30 minutes, Polymerized slime is obtained; the polymerized slime is water-cooled and pulverized into powder, then the filtered powder is added to ethanol and boiled under reflux for 1 hour, and this is repeated 10 times, and then boiled with new deionized water for 1 hour, and this is repeated 8 to 10 times ...

Embodiment 3

[0047] In a 1-liter four-neck flask equipped with a nitrogen tube and a high-efficiency stirrer, first add 336.00g of diphenyl sulfone, 108.000g of 4,4'-difluorobenzophenone, 92.174g of biphenol, 1.438g of 4,4' - After dichlorodiphenyl sulfone and 63.600g sodium carbonate, start to heat up until the monomers are completely dissolved, then add 0.550g hydroquinone to the system, continue stirring evenly, then raise the temperature to 210°C~220°C, and react for 1~2 hours , raise the temperature to 240°C-270°C, react for 0.5-2 hours, then raise the temperature to 310°C-320°C to polymerize for 1-4 hours, add 0.7g of 3,4'-difluorobenzophenone, and continue the reaction for 10-30 minutes, Polymerized slime is obtained; the polymerized slime is water-cooled and pulverized into powder, then the filtered powder is added to ethanol and boiled under reflux for 1 hour, and this is repeated 10 times, and then boiled with new deionized water for 1 hour, and this is repeated 8 to 10 times unti...

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Abstract

The invention discloses a method for preparing random segmented copolymer containing polyether-ether-ketone and polyaryl ether ketone sulfone through the quaternary copolycondensation technology. The method includes the steps that in a reaction still under nitrogen filled protection, four monomers and alkali carbonate are added to a high-temperature organic solvent, the solid content of a system ranges from 15% to 40%, after temperature is raised due to heating till all the monomers are molten, the mixture continues to be stirred to be uniform, the temperature is raised to 210 DEG C-220 DEG C, a reaction is conducted for 1-2 hours, the temperature is raised to 240 DEG C-270 DEG C, a reaction is conducted for 0.5-2 hours, the temperature is raised to 310 DEG C-320 DEG C, polymerization is conducted for 1-4 hours, an end capping reagent is added, the mixture continues to react for 10-30 min, and polymerized thick liquid is obtained; the polymerized thick liquid is cooled and then smashed into powder, after being filtered, the powder is boiled and washed through an organic solvent and deionized water, a solvent and by-product salt are removed, and the quaternary copolymer containing four repetitive unit structures of PEEK, PPSU, PEES and PEDEK at the same time is obtained after drying is completed.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a quaternary random copolymer prepared by adopting quaternary co-condensation technology, which contains PEEK, PEES, PEDEK and PPSU. Background technique [0002] Polyether ether ketone (PEEK), polyphenylene ether sulfone (PPSU), polyether sulfone (PES) are high-performance engineering plastics, due to their heat resistance, hot water resistance, wear resistance, fatigue resistance , radiation resistance, peel resistance, creep resistance, dimensional stability, impact resistance, chemical resistance, non-toxic, flame retardant and other excellent comprehensive properties, so it has been used in electronics, electrical appliances, machinery, automobiles for a long time , medical equipment, aviation industry, food processing and non-stick coatings and other fields have been widely used. [0003] In the process of use, due to the high melt viscosity of polyar...

Claims

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Application Information

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IPC IPC(8): C08G75/23
Inventor 王贤文
Owner JIANGMEN YOUJU NEW MATERIALS
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