METHOD FOR PRODUCING POLYARYLENE SULFIDE

To provide a method for producing a polyarylene sulfide that yields little gas during heating and has excellent melting stability without adding metal compounds.SOLUTION: A polyarylene sulfide prepolymer containing at least 50 wt.% or more of a cyclic polyarylene sulfide represented by formula (A) a...

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Hauptverfasser:	HORIUCHI SHUNSUKE, TAKAO HIDENOBU, KAIHO HIDE
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	To provide a method for producing a polyarylene sulfide that yields little gas during heating and has excellent melting stability without adding metal compounds.SOLUTION: A polyarylene sulfide prepolymer containing at least 50 wt.% or more of a cyclic polyarylene sulfide represented by formula (A) and having a repeating unit number of m=4-50 in the formula, is heated in the presence of a biphenyl-type halogenated aromatic compound that is 0.001-20 mol% relative to sulfur atoms in the polyarylene sulfide prepolymer and includes a linking group that is any electron-withdrawing group selected from a sulfonyl group, sulfoxide group, and carbonyl group. (Ar is an arylene group).SELECTED DRAWING: None 【課題】金属化合物を添加することなく、加熱時のガス発生量が少なく、溶融安定性に優れるポリアリーレンスルフィドの製造方法の提供。【解決手段】式（Ａ）で表され、かつ式中の繰り返し単位数ｍ＝４〜５０である環式ポリアリーレンスルフィドを少なくとも５０重量％以上含むポリアリーレンスルフィドプレポリマーを、ポリアリーレンスルフィドプレポリマー中の硫黄原子に対し０．００１〜２０モル％の、連結基が、スルホニル基、スルホキシド基、およびカルボニル基から選ばれるいずれかの電子吸引性基であるビフェニル型のハロゲン化芳香族化合物の存在下に加熱する。（Ａｒはアリーレン基を表す。）【選択図】なし