Wannida Apisuk, Naohiro Suzuki, Hyun Joon Kim, Dong Hyun Kim, Boonyarach Kitiyanan and Kotohiro Nomura Efficient terpolymerization of ethylene and styrene with α-olefins by aryloxo-modified half-titanocene-based catalysts and cocatalyst systems Journal of Polymer Science Part A: Polymer Chemistry 51
Aryloxo-modified half-titanocenes, Cp′TiCl2(O-2,6-iPr2C6H3) [Cp′ = Cp* (1), tBuC5H4 (2)], catalyze terpolymerization of ethylene and styrene with α-olefin (1-hexene and 1-decene) efficiently in the presence of a cocatalyst, affording high-molecular-weight polymers with unimodal distributions (compositions). The content of each monomer can be controlled by varying the concentration of charged comonomer. Resonances ascribed to styrene and α-olefin repeated insertion are negligible. The terpolymerization with p-methylstyrene in place of styrene also proceeds in the presence of [PhN(H)Me2][B(C6F5)4] and the AliBu3 cocatalyst, affording high-molecular-weight polymers with uniform distributions.
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