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Polyarylenesulfidesulfone/polyethersulfone copolymer and preparation method thereof

A technology of polyarylene sulfide sulfone and polyether sulfone, which is applied in the field of polymer synthesis, can solve problems such as unfavorable injection molding and high melt viscosity, and achieve the effects of overcoming difficulties in injection molding, high product yield and simple method.

Active Publication Date: 2013-03-06
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the strong polar sulfone group in the molecular chain structure, the melt viscosity of polyarylene sulfide sulfone is high in the molten state, which is not conducive to injection molding

Method used

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  • Polyarylenesulfidesulfone/polyethersulfone copolymer and preparation method thereof
  • Polyarylenesulfidesulfone/polyethersulfone copolymer and preparation method thereof
  • Polyarylenesulfidesulfone/polyethersulfone copolymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Preparation of polyarylene sulfide sulfone prepolymer

[0039] Add 200g of N-methylpyrrolidone, 272.65g of 4,4'-dichlorodiphenylsulfone, 123.5g of sodium sulfide, 10g of sodium hydroxide, 3g of trisodium phosphate, 4g of sodium acetate, and 4g of lithium acetate into the , thermometer, water separator, condenser tube and nitrogen inlet and outlet pipe reactor, under the protection of nitrogen, at a temperature of 185 o C dehydration reaction 0.8h; generate polyarylene sulfide sulfone prepolymer, lower the temperature to 120 o Save at C;

[0040] (2) Preparation of polyethersulfone prepolymer

[0041] Add 40g of N-methylpyrrolidone, 14.35g of 4,4'-dichlorodiphenyl sulfone, 5.5g of hydroquinone, 7g of potassium carbonate, and 26g of toluene into the In the reactor with nitrogen inlet and outlet pipes, under the protection of nitrogen, at a temperature of 180 o C dehydration reaction for 12h; generate polyethersulfone prepolymer, lower the temperature to 120 o Sav...

Embodiment 2

[0045] (1) Preparation of polyarylene sulfide sulfone prepolymer

[0046] Put 500g of sulfolane, 258.3g of 4,4'-dichlorodiphenylsulfone, 117g of sodium sulfide, 7.5g of sodium hydroxide, 4g of sodium acetate, and 4g of lithium acetate into the In the reactor with nitrogen inlet and outlet pipes, under the protection of nitrogen, at a temperature of 180 o C dehydration reaction for 2h; generate polyarylene sulfide sulfone prepolymer, lower the temperature to 115 o Save at C;

[0047] (2) Preparation of polyethersulfone prepolymer

[0048] Add 200g of sulfolane, 28.7g of 4,4'-dichlorodiphenylsulfone, 20.2g of 4,4'-dihydroxydiphenyl ether, 20g of potassium carbonate, and 40g of xylene into a , condensing pipe and nitrogen inlet and outlet pipe reactor, under the protection of nitrogen, at a temperature of 175 o C dehydration reaction 11h; generate polyethersulfone prepolymer, lower the temperature to 100 o Save at C;

[0049] (3) Preparation of polyarylene sulfide sulfone / pol...

Embodiment 3

[0052] (1) Preparation of polyarylene sulfide sulfone prepolymer

[0053] Add 200.00g of hexamethylphosphoric triamide, 243.95g of 4,4'-dichlorodiphenylsulfone, 110.5g of sodium sulfide, 9g of sodium hydroxide, 3.5g of lithium acetate, and 4g of sodium glycolate into the , thermometer, water separator, condensation pipe and nitrogen inlet and outlet pipe reactor, under the protection of nitrogen, at a temperature of 198 o C dehydration reaction for 1.5h; generate polyarylene sulfide sulfone prepolymer, lower the temperature to 140 o Save at C;

[0054] (2) Preparation of polyethersulfone prepolymer

[0055] Add 300g of hexamethylphosphoric triamide, 43.05g of 4,4'-dichlorodiphenyl sulfone, 16.5g of resorcinol, 30g of potassium carbonate, and 70g of toluene into the In the reactor of the condensing pipe and the nitrogen inlet and outlet pipe, under the protection of nitrogen, at a temperature of 175 o C dehydration reaction for 16h; generate polyethersulfone prepolymer, low...

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Abstract

The invention discloses a polyarylenesulfidesulfone / polyethersulfone copolymer and a preparation method thereof. The method is characterized by comprising the following steps of: adding 143.5-272.65 parts of 4,4'-dichlorodiphenyl sulfone, 65.00-123.5 parts of sodium sulfide, 0.2-10 parts of sodium hydroxide, 0.5-20 parts of catalyst and 200-860 parts of solvent into a reactor; in the protection of nitrogen, performing dehydration reaction at 140-198 DEG C for 0.5-3 hours to generate a prepolymer of polyarylenesulfidesulfone; cooling to 100-140 DEG C and storing; adding 14.35-143.5 parts of 4,4'-dichlorodiphenyl sulfone, 5.5-176 parts of diphenol monomer, 7-100 parts of potassium carbonate, 40-600 parts of solvent and 26-100 parts of dehydrating agent into a reactor; in the protection of nitrogen, performing dehydration reaction at 145-180 DEG C for 10-12 hours to generate a prepolymer of polyethersulfone; cooling to 90-160 DEG C and storing; mixing the prepolymer of polyarylenesulfidesulfone and the prepolymer of polyethersulfone; heating to 140-200 DEG C and reacting for 4-12 hours; and reacting at 166-230 DEG C for 3-8 hours to obtain the polyarylenesulfidesulfone / polyethersulfone copolymer.

Description

technical field [0001] The invention relates to a polyarylene sulfide sulfone / polyether sulfone copolymer and a preparation method thereof, belonging to the field of polymer synthesis. Background technique [0002] Polyarylene sulfide sulfone is an excellent engineering plastic with excellent mechanical and electrical properties, dimensional stability, chemical corrosion resistance, radiation resistance and flame retardancy. Due to the presence of highly polar sulfone groups in the molecular chain structure, the melt viscosity of polyarylene sulfide sulfone in the molten state is high, which is not conducive to injection molding. (Rex L. Bobsein; Harold D. Yelton; Mark W. Woods; Merlin R. Lindstrom, all of Bartlesville, Okla., MELT STABILIZATION OF POLY(ARYLENE SULFIDE SULFONE)S ) The method of polyethersulfone copolymerization increases the relative proportion of soft segments (ether bonds, thioether bonds) in the molecular structure of the polymer to reduce the melt visco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G75/23B01D71/68
Inventor 杨杰李东升张刚龙盛如王孝军
Owner SICHUAN UNIV
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