Process for preparing copolymer containing biphenyl polyether ether-sulfone and poly(ether sulfone)

A technology of polyethersulfone terpolymer resin and biphenyl polyether, which is applied in the field of biphenyl-containing polyether ether sulfone and polyether sulfone terpolymer, and can solve the problem of low flexibility

Active Publication Date: 2006-10-11
PANJIN ZHONGRUN SUPER ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fly in the ointment is that due to the strong rigidity of its molecular chain, its flexibility is lower than that of polyether ketone resins. So far, it cannot meet the requirements of high toughness fields such as the preparation of electromagnetic wires, wires and cables. We have been engaged in the field of special engineering plastics for a long time. In the study of the relationship between structure and performance, it was found that adding flexible ether bonds to the polymer molecular chain has obvious effects on improving the toughness of the polymer. The ratio of the bond (-O-) to the sulfone group can be adjusted to obtain a series of terpolymers with significantly improved toughness on the basis of maintaining other physical properties of the original polyethersulfone resin.

Method used

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  • Process for preparing copolymer containing biphenyl polyether ether-sulfone and poly(ether sulfone)
  • Process for preparing copolymer containing biphenyl polyether ether-sulfone and poly(ether sulfone)
  • Process for preparing copolymer containing biphenyl polyether ether-sulfone and poly(ether sulfone)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In a 1000ml three-necked reaction flask equipped with a thermometer, a nitrogen pipe, a condensing water separator, and a stirrer, first add 520g of refined sulfolane (dimethylsulfone, diphenylsulfone, etc. can also be used) and then sequentially add 142.87g (0.4975mol , with respect to biphenol and bisphenol-S molar number and 0.5mol deficiency 0.5% of the two chlorine ( ) and 0.93g (0.005mol) biphenol ( ) and 123.88g (0.495mol) bisphenol-S ( ) (the polymer generated by the reaction is 232 grams, and the solid content is about 31%), then add 78g dimethylbenzene (15% of the solvent quality) and stir, heat (the reaction bottle is placed in the electric heating mantle) to make the solid dissolve completely After continuing to heat to 80° C., add an alkali solution containing 56.11 g (1.0 mol) KOH, and the concentration of the alkali solution is 25%. Continue to heat up to 100°C and the system starts to azeotrope, xylene and water are condensed in the water separator,...

Embodiment 2

[0031] Change the batching ratio of Example 1, still get 520g refined sulfolane, then add 142.87g (0.4975mol, relative to biphenol, bisphenol-S molar number and 0.5mol less than 0.5%) of dichloro, The diphenol of 1.86g (0.01mol), the bisphenol-S of 122.63g (0.49mol), the add-on of xylene, KOH solution and monochlorsulfone and the addition condition are completely with embodiment 1, and according to All reactions were carried out under the same reaction conditions. After obtaining the polymer, carry out the refining process completely according to the same method and conditions as in Example 1 to obtain the benzene terminal product with X=0.98 as shown in the formula (2). The product that obtains obtains with identical method and condition test:

[0032] Tg=225℃

Embodiment 3

[0034] Change the batching ratio of Example 1, still get 520g refined sulfolane, then add 142.87g (0.4975mol, relative to biphenol, bisphenol-S molar number and 0.5mol less than 0.5%) of dichloro, The biphenyl diphenol of 4.65g (0.025mol), the bisphenol-S of 118.88g (0.475mol), the add-on and adding condition of xylene, KOH solution and monochlorsulfone are completely with embodiment 1 afterwards, and according to All reactions were carried out under the same reaction conditions. After obtaining the polymer, carry out the refining treatment completely according to the same method and conditions as in Example 1 to obtain the benzene terminal product with X=0.95 as shown in the formula (2). The product that obtains obtains with identical method and condition test:

[0035] Tg=225℃

[0036] B = 25%.

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Abstract

The invention relates to a method for preparation of phenyl end group biphenyl polyetherethersulfone -chloride end group biphenyl polyetherethersulfone -polyethersulfone terpolymer. In the ternary copolymerized reaction system, add organic solvent, dichlorine, bisphenol-S and phenyl bisphenol with 25-40% solids content in the solvent, then add dimethylbenzene, stir and heat-up to 75-80 DEG C then add caustic potash or caustic soda which is of 2 times mole numbers of the bisphenol-S and phenyl bisphenol with a concentration of 25-30%, constantly react for 3-4 hours with the temperature of the reaction system keeps up to 220-250 DEG C, then add dead-end agent of sulfone monochloride with 2 times mole numbers of the dichlorine, then go on reacting for 0.5-1.5 hours, stop reaction to cool and disintegrate the polymer mucilage, then add some water to repeatedly boil until the dissolvent and the by-product are fully removed, dry the refined polymer powder in the bake oven and obtain the said phenyl end group biphenyl polyetherethersulfone - chloride end group biphenyl polyetherethersulfone-polyethersulfone terpolymer.

Description

technical field [0001] The invention belongs to the field of polymer materials, and specifically relates to a method for preparing a series of polyether ether sulfone and polyether sulfone terpolymers containing biphenyl end groups or chlorine end groups in a set of production equipment using ternary copolymerization technology . Background technique [0002] Polyethersulfone is a special engineering plastic with relatively excellent comprehensive properties. It has high mechanical strength, excellent electrical properties, high heat resistance, corrosion resistance, radiation resistance and other excellent comprehensive properties. It has been widely used in many industrial fields. But the fly in the ointment is that due to the strong rigidity of its molecular chain, its flexibility is lower than that of polyether ketone resins, which cannot meet the requirements of high toughness fields such as the preparation of electromagnetic wires, wires and cables. We have been engage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G75/23
Inventor 吴忠文
Owner PANJIN ZHONGRUN SUPER ENG PLASTICS
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