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Living copolymerization of ethylene/1-octene with fluorinated FI-Ti catalyst

Authors

  • Weifeng Liu,

    1. Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, People's Republic of China 310027
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  • Kailun Zhang,

    1. Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, People's Republic of China 310027
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  • Hong Fan,

    1. Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, People's Republic of China 310027
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  • Wen-Jun Wang,

    1. Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, People's Republic of China 310027
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  • Bo-Geng Li,

    Corresponding author
    1. Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, People's Republic of China 310027
    • Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, People's Republic of China 310027
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  • Shiping Zhu

    Corresponding author
    1. Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada L8S 4L7
    • Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada L8S 4L7
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Abstract

Living copolymerization of ethylene and 1-octene was carried out at room temperature using the fluorinated FI-Ti catalyst system, bis[N-(3-methylsalicylidene)-2,3,4,5,6-pentafluoroanilinato] TiCl2/dried methylaluminoxane, with various 1-octene concentrations. The comonomer incorporation up to 32.7 mol % was achieved at the 1-octene feeding ratio of 0.953. The living feature still retained at such a high comonomer level. The copolymer composition drifting was minor in this living copolymerization system despite of a batch process. It was found that the polymerization heterogeneity had a severe effect on the copolymerization kinetics, with the apparent reactivity ratios in slurry significantly different from those in solution. The reactivity ratios were nearly independent of polymerization temperature in the range of 0–35 °C. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013

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