Ethylene/1-hexene copolymerization with supported Ziegler-Natta catalysts prepared by immobilizing TiCl3(OAr) onto MgCl2

作者: Hongrui Yang , Biao Huang , Zhisheng Fu , Zhiqiang Fan

DOI: 10.1002/APP.41329

关键词:

摘要: Five titanium complexes TiCl3(OAr) (Ar = C6H5, 2,6-Me2C6H3, 2,6-i-Pr2C6H3, 2,6-t-Bu2C6H3, 4-Me-2,6-t-Bu2C6H3) were immobilized, respectively, on MgCl2 in semibatch reaction to form supported catalysts for olefin polymerization. Comparing with the prepared by immobilizing onto batch reaction, have lower content and higher ArO/Ti ratio. The aryloxy-containing studied this work showed ethylene/1-hexene copolymerization activity 1-hexene incorporation rate than blank catalyst when activated triisobutylaluminum. Similar effects of aryloxy ligand observed is conducted presence hydrogen. Introducing either or caused similar enhancing α-olefin rate. Mechanism has been discussed. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41329.

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