Pd(II) Catalyzed Copolymerization of Styrene and CO in Quaternary Ammonium Ionic Liquids

  • Tian, Jing (School of Chemical Engineering and Technology, TianJin University) ;
  • Guo, Jin-Tang (School of Chemical Engineering and Technology, TianJin University) ;
  • Zhu, Cheng-Cai (School of Chemical Engineering and Technology, TianJin University) ;
  • Zhang, Xin (School of Chemical Engineering and Technology, TianJin University) ;
  • Xu, Yong-Shen (School of Chemical Engineering and Technology, TianJin University)
  • Published : 2009.03.25

Abstract

Poly(1-oxo-2-phenyltrimethylene) was synthesized by palladium-catalyzed copolymerization of styrene and carbon monoxide in quaternary ammonium ionic liquids. The $[Pd(bipy)_2][PF_6]_2$ compound had relatively more catalytic activity than $[Pd(bipy)_2][BF_4]_2$ in ionic liquids. The catalytic activity of palladium (II) composite catalyst was superior to the catalyst formed in situ from palladium acetate, 2,2-bipyridyl, and $X^-$ ($X^-=PF_6^-$, $BF_4^-$) in ionic liquids. The effects of the volume of ionic liquids, reaction time and benzoquinone content on the copolymerization were also described.

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