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Polymerization of higher α-olefins with the catalytic system (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-bis(perfluorophenyldimethanolate) titanium(IV) dichloride-organoaluminum compound |
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| Authors: | S Ch Gagieva V A Tuskaev O V Smirnova S S Galibeev B M Bulychev N M Bravaya |
| Institution: | 1. Faculty of Chemistry, Moscow State University, Moscow, 119991, Russia 2. OOO Niost, Kuzovlevskii trakt 2, str. 270, Tomsk, 634067, Russia 3. Institute of Problems of Chemical Physics, Russian Academy of Sciences, pr. Akademika Semenova 5, Chernogolovka, Moscow oblast, 142432, Russia |
| Abstract: | The catalytic activity of the titanium(IV) dichloride complex with the (4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-bis(perfluorophenyldimethanol) ligand in the presence of a cocatalyst (polymethylaluminoxane, triethylaluminum, or triisobutylaluminum) in the polymerization of higher α-olefins (1-hexene, 1-octene, 1-decene) is investigated. It is shown that, depending on the types of cocatalyst and monomer and the molar ratio of components of the catalytic system, high- or ultrahigh-molecular-mass poly(α-olefins) with M w = (4 × 105)?(3 × 106) can be prepared. The chain microstructure of polyhexene is examined. |
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