Macromolecular Research, Vol.17, No.3, 144-148, March, 2009
Pd(II) Catalyzed Copolymerization of Styrene and CO in Quaternary Ammonium Ionic Liquids
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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][PF6]2 compound had relatively more catalytic activity than [Pd(bipy)2][BF4]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-=PF6-, BF4-) in ionic liquids. The effects of the volume of ionic liquids, reaction time and benzoquinone content on the copolymerization were also described.
Keywords:poly(1-oxo-2-phenyltrimethylene);ionic liquids;palladium catalyst;carbon monoxide;catalytic activity.
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