New fluorine-containing titanium bis(salicylideneimino) complexes in olefin polymerization |
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| Authors: | Gagieva S Ch Sukhova T A Savinov D V Optov V A Bravaya N M Belokon' Yu N Bulychev B M |
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| Institution: | (1) Department of Chemistry, Leninskie Gory, M. V. Lomonosov Moscow State University, 119899 Moscow, Russian Federation;(2) Institute of Problems of Chemical Physics, Russian Academy of Sciences, 18 Institutskii prosp., 142432 Chernogolovka, Moscow Region, Russian Federation;(3) N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 ul. Kosygina, 119991 Moscow, Russian Federation;(4) A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russian Federation |
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| Abstract: | The titanium salicylideneimino complex TiCl2{ 2-1-NR=C(H)]-2-O-3,5-But
2-C6H2}2 (R = 2,3,5,6-F4C6H) was synthesized. In the presence of polymethylaluminoxane, the complex efficiently catalyzes polymerization of ethylene and, to a lesser degree, atactic propylene. The resulting polymers are characterized by high melting points, molecular weights, and polydispersity indices, as well as elastomeric (polypropylene) properties. |
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| Keywords: | titanium phenoxyimine complexes homogeneous catalysis polymerization olefins polyethylene polypropylene |
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