Synthesis of poly(arylene sulfide)s by cationic oxidative polymerization of diaryl disulfides

Kimihisa Yamamoto*, Mitsutoshi Jikei, Junya Katoh, Hiroyuki Nishide, Eishun Tsuchida


研究成果: Article査読

30 被引用数 (Scopus)


Alkyl-substituted poly(arylene sulfide)s (PASs) are prepared by the oxidative polymerization of diaryl disulfides with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ). The structures of the formed poly(arylene sulfide)s are confirmed by spectroscopic measurements. The linear structure of poly(2-methyl-1,4-phenylene sulfide) is confirmed by comparing its spectroscopic data with those of the polymer prepared from bis(2-methylphenyl) disulfide, bis(3-methylphenyl) disulfide and (4-bromo-2-methylthiophenoxy) copper salt. Bis(2,5-dimethylphenyl) disulfide is easily polymerized to poly(2,5-dimethyl-1,4-phenylene sulfide) with high yield and high melting point in comparison with the other methyl-substituted poly(arylene sulfide)s, due to the symmetry of the polymer structure. The polymerization reaction, with the exception of bis(3,5-dimethylphenyl) disulfide, produces low molecular weight polymers because of the solvent insolubility of PASs and the low reactivity of diaryl disulfides. Soluble poly(2,6-dimethylphenylene sulfide) is isolated by the polymerization of bis(3,5-dimethylphenyl) disulfide as a white powder with ca. 3 × 104 weight-average molecular weight.

出版ステータスPublished - 1992 1月 1

ASJC Scopus subject areas

  • 材料化学


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