Living copolymerization of ethylene/1‐octene with fluorinated FI‐Ti catalyst |
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| Authors: | Weifeng Liu Kailun Zhang Hong Fan Wen‐Jun Wang Bo‐Geng Li Shiping Zhu |
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| Affiliation: | 1. Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou, People's Republic of China 310027;2. 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, bisN‐(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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| Keywords: | copolymerization fluorinated FI catalyst living polymerization polyethylene (PE) reactivity ratios |
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