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Polyaryl thioether sulfone and its preparation method

A polyarylene sulfide sulfone and formulation technology are applied in the field of polyarylene sulfide sulfone and its preparation, which can solve the problems of poor reaction system protection, single raw material, poor product color and luster, and achieve easy control, high molecular weight, and short reaction time. Effect

Inactive Publication Date: 2003-12-17
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the raw materials of the reaction system are relatively single, the structure and performance of the product do not change much, the protection of the reaction system is weak, the stability is poor, and the color of the product is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0030] 1. Add 250 grams of N-methylpyrrolidone, 4 grams of sodium hydroxide, 5 grams of sodium formate and 5 grams of lithium chloride into a reaction kettle with a stirrer, a thermometer and a water separator. After stirring evenly, add Na 2 S·xH 2 O containing sodium sulfide ≈60% 52g in N 2 Under gas protection, heat up to 190°C, separate 14 grams of water, then add 128 grams of dichlorodiphenyl sulfone, react at a temperature of 170°C to 180°C for 2.5 hours, add 8 grams of sodium acetate, 4 grams of dichlorobenzene, The temperature was raised to 210-220° C., and the reaction was maintained at this temperature for another 3 hours. After cooling, depressurizing and filtering, the product was washed with hot deionized water, and then dried at 120° C. for 12 hours to obtain polyarylene sulfide sulfone with a yield of 95%.

[0031] 2. Add 280 grams of diphenyl sulfone, 2 grams of sodium hydroxide, 2 grams of sodium formate and 6 grams of sodium acetate into the same equipment ...

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PUM

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Abstract

A polyaryl thioether sulfone is disclosed, which has the characteristic viscosity for its solution of 0.15-0.54, the vitrification temp higher than 210 deg.C, the thermal deformation temp higher than 180 deg.C and thermal decomposing temp higher than 480 deg.C and thermal decomposing temp higher than 480 deg.C. Its preparing process features that the halogenated aryl compound is added to the reaction system of Na2S.xH2O and bichlorodiphenyl sulfone, and composite catalyste and assistant are used.

Description

1. Technical field [0001] The invention relates to a polyarylene sulfide sulfone and a preparation method thereof, belonging to the field of polymer synthesis. 2. Background technology [0002] Polyarylene sulfide includes a large class of sulfur-containing aryl polymers, such as polyphenylene sulfide, polyphenylene sulfide sulfone, polyphenylene sulfide ketone and polyphenylene sulfide amide, etc., polyphenylene sulfide has been industrialized on a large scale . In 1967, Edmonds, J.T and Hill, H.W of Phillips Petroleum Co pioneered the synthesis of polyarylene sulfide in polar organic solvents using sodium sulfide and p-dichlorobenzene as raw materials, U.S 3354129. Since then, there have been a large number of research reports, mainly focusing on the selection of catalysts and additives and the adjustment of process conditions to obtain high molecular weight resins, thereby further improving and improving the performance of the resin, especially the toughness of the resin...

Claims

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Application Information

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IPC IPC(8): C08G75/00
Inventor 杨杰陈永荣王华东龙盛如杜宗英严永刚
Owner SICHUAN UNIV
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