KR900016290A - Poly (arylene thioether) copolymer and preparation method thereof - Google Patents

Abstract

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Description

Poly (arylene thioether) copolymer and preparation method thereof

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Claims (16)

The repeating unit of the following structural formula (I), Other repeating units of the following structural formula (II) Wherein the number of repeating units (I) in the polymer molecule is m, the number of repeating units (II) in the copolymer molecule is n, and the value of m / (m + n) is in the range of 0.20 to 0.90 The new poly (arylenethioether) coco has a melt viscosity of at least 50 poises when measured at a temperature 10 ° C higher than the melting point of the copolymer using a nozzle having an internal diameter of 1 mm and a length of 10 mm under a weight load of 10 kg / cm ^2. Polymer. The copolymer of claim 1 wherein the value of m / (m + n) is 0.30 to 0.70. The copolymer according to claim 1 or 2, wherein the copolymer has a melt viscosity of at least 150 poises. A method for producing a poly (arylene thioether) copolymer comprising reacting dihalogenobenzonitrile of the following general formula (III), dihalogenobenzene of the following general formula (IV) and a thioethering agent in an organic solvent. Wherein each x ₁ , x ₂ , x ₃ and x ₄ may be the same or different and represent a halogen atom. The dihalogenobenzonitrile (III) is a 2,6-dichlorobenzonitrile, 2,6-dibromobenzonitrile, 2,6-difluorobenzonitrile and 2-chloro-6-bro Method selected from the group consisting of mobenzonitrile. The dihalogenobenzonitrile (IV), which is composed of p-dichlorobenzene, p-dibromobenzene, p-difluorobenzene and 1-bromo-4-chlorobenzene according to claim 4 or 5. How to choose from groups. The process according to claim 4, wherein the thioetherating agent is a sulfur source in combination with an alkali metal sulfide or an alkali metal hydroxide. 8. The alkali metal hydroxide of claim 7 wherein the sulfur source is selected from the group consisting of alkali metal hydrosulfides, tizoamide hydrogen sulfides, thioureas, thiocarbamates, thiocarboxylic acids, carbon disulfides, thiocarboxylates, sulfur and phosphorus pentachlorides. Silver is selected from the group consisting of potassium, sodium lithium and cesium awards. The method of claim 8, wherein the alkali metal hydrosulfide is lithium, sodium, potassium, rubidium, or cesium hydrosulfide. The process of claim 4, wherein the reaction is carried out at about 50 to 300 ° C. for about 1 to 20 hours. The method of claim 10, wherein the temperature range is about 100 to 280 ° C. 12. The process according to claim 4, wherein the molar ratio of the thioetherating agent to the total amount of dihalogenobenzonitrile and dihalogenobenzene used is from about 0.70 to 1.30. The method of claim 12, wherein the molar ratio is about 0.90 to 1.10. The process according to any one of claims 4 to 13, wherein the total concentration before the start of the reaction of the monomer material consisting of dihalogenobenzonitrile, dihalenobenzene and thiorterating agent is about 100 to 2000 g per liter of organic solvent. An article molded or molded from the copolymer according to claim 1. The article of claim 15 further cured by crosslinking. ※ Note: The disclosure is based on the initial application.