Title:
PRODUCTION OF POLYARYLENE THIOETHER
Document Type and Number:
Japanese Patent JP3138786
Kind Code:
B2
Abstract:
PURPOSE: To obtain a polyarylene thioether which is useful as an engineering plastics because of its excellent chemical resistance, dimensional stability and processability by photooxidative polymerization of a specific thiophenol in the presence of a specific photosensitizer simply and efficiently.
CONSTITUTION: The objective polymer is obtained by effecting photooxidative polymerization of a thiophenol of formula I (R1, R2 are lower alkyl, lower alkoxy; R3, R4 are H, lower alkyl, lower alkoxy) and/or a diphenyl disulfide of formula II (R5 to R8 are lower alkyl, lower alkoxy; R9 to R12 are H, lower alkyl, lower alkoxy) in the presence of a photosensitizer (preferably more than 1.0V of oxidation-reduction potential under photo-excited states based on the silver/silver chloride standard), consisting of a cyanobezene of formula III (R13 to R18 are H, cyano).
Inventors:
Kimihisa Yamamoto
Hidetoshi Tsuchida
Hidetoshi Tsuchida
Application Number:
JP5040993A
Publication Date:
February 26, 2001
Filing Date:
March 11, 1993
Export Citation:
Assignee:
Japan Science and Technology Agency
International Classes:
C08G75/02; C08G75/025; C08G75/06; (IPC1-7): C08G75/02
Other References:
Ｃｈｅｍｉｓｔｒｙ Ｌｅｔｔｅｒｓ，１９９３，Ｎｏ．７，ｐ．１１０１−１１０４
Ｍａｃｒｏｍｏｌｅｃｕｌａｒ Ｃｈｅｍｉｓｔｒｙ ａｎｄ Ｐｈｙｓｉｃｓ，１９９４，ｖｏｌ．１９５，Ｎｏ．９，ｐ．３０８７−３０９４
Ｍａｃｒｏｍｏｌｅｃｕｌａｒ Ｃｈｅｍｉｓｔｒｙ ａｎｄ Ｐｈｙｓｉｃｓ，１９９４，ｖｏｌ．１９５，Ｎｏ．９，ｐ．３０８７−３０９４
Attorney, Agent or Firm:
Hiroshi Tanaka