Abstract
Activated magnesium chloride has been established as an ideal support for titanium-based high efficiency olefin polymerization. One of the earliest disclosed methods was to comill anhydrous magnesium chloride and titanium tetrachloride for prolonged periods either alonel or in presence of an electron donor, such as ethyl benzoate (EB).2,3 A later variant involves comilling anhydrous MgCl2 with an electron donor (typically EB) followed by treatment with TiCl4 in the liquid phase.4 In some cases prior to reaction with TiCl4, the milled MgCl2.EB complex is also treated with a second electron donor and an organoaluminum compound.5,6
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Sivaram, S., Srinivasan, P.R. (1987). Polymerization of Olefins with Magnesium Chloride-Supported Catalysts. In: Seymour, R.B., Cheng, T. (eds) Advances in Polyolefins. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9095-5_20
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DOI: https://doi.org/10.1007/978-1-4757-9095-5_20
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