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Effect of hydrogen on ethylene polymerization using in‐situ supported metallocene catalysts
Author(s) -
Chu KyungJun,
Soares Joao B. P.,
Penlidis Alexander
Publication year - 2000
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/(sici)1521-3935(20000301)201:5<552::aid-macp552>3.0.co;2-a
Subject(s) - metallocene , polymer chemistry , ethylene , catalysis , polymerization , materials science , post metallocene catalyst , hydrogen , chemistry , organic chemistry , polymer
The effect of hydrogen on ethylene polymerization using two different in‐situ supported metallocene catalysts (Et[Ind] 2 ZrCl 2 and Cp 2 ZrCl 2 ) was investigated. In the presence of hydrogen, both catalysts showed enhancement of the polymerization rate. Surprisingly, the molecular weight distribution (MWD) changed from unimodal to bimodal with addition of hydrogen.