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Korean Journal of Chemical Engineering, Vol.17, No.2, 205-209, 2000
Control of Molecular Weight Distribution (MWD) for Polyethylene Catalyzed over Ziegler-Natta/Metallocene Hybrid Catalysts
Two types of inorganic supports, MgCl2, for the impregnation of catalysts were prepared the recrystallization and sol-gel methods, respectively. The Ziegler-Natta/Metallocene hybrid catalysts were prepared in order to control the molecular weight (Mw) and the molecular weight distribution (MWD) during ethylene polymerization. The polyethylene produced by the hybrid catalysts can control the Mw and the MWD of polymer, showing two melting temperatures and a bimodal MWD, corresponding arising from each of the individual catalysts. This suggests that these hybrid catalysts acted as individual active species and produced a blend of polymers.
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[Cited By]
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- Park HW, La KW, Song IK, Chung JS, Macromolecular Research, 15(3), 221, 2007
- Park HW, La KW, Chung JS, Song IK, Korean Journal of Chemical Engineering, 24(3), 403, 2007
- Ghasem NM, Ang WL, Hussain MA, Korean Journal of Chemical Engineering, 26(3), 603, 2009
- Encarnacion JD, Park SJ, Ko YS, Korean Journal of Chemical Engineering, 37(2), 380, 2020
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