METHOD FOR PRODUCING POLYARYLENE SULFIDE

WIPO Patent Application WO/2020/261695

A1

Provided is a method which is for producing a polyarylene sulfide (hereinafter, "PAS") and with which a PAS having a high nitrogen content can be obtained.　A method for producing a PAS according to the present invention includes: a preparation step in which a mixture is prepared that contains an organic polar solvent containing a first pyrrolidone compound represented by formula (1) and a second pyrrolidone compound represented by formula (2), a sulfur source, water, and a polyhaloaromatic compound; and a polymerization step in which the mixture is subjected to a polymerization reaction. In formula (1), R is a hydrocarbon group having at least two carbon atoms. In formula (2), A is a hydrogen atom or an organic group having one carbon atom.

OCHIAI JYUNICHI (JP)
SATO TAKESHI (JP)
SUZUKI YOSHINORI (JP)

PCT/JP2020/015231

December 30, 2020

April 02, 2020

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KUREHA CORP (JP)

C08G75/025

WO2016199869A1

2016-12-15

CHOI, Y. K. ET AL.: "The effect of N-cyclohexyl-2-pyrrolidinone as a solvent on the polymerization of poly(phenylene sulfide).", POLYMER ( KOREA, vol. 21, no. 5, September 1997 (1997-09-01), pages 730 - 736, XP055780456, ISSN: 2234-8077
KIM, J. H. ET AL.: "Synthesis of poly (phenylene oxide) and poly(phenylene silfide) bilaterally substituted with a rigid benzoxazole group", POLYMER JOURNAL, vol. 32, no. 2, February 2000 (2000-02-01), pages 118 - 121, XP055780460, ISSN: 1349-0540

SHOBAYASHI Masayuki et al. (JP)

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