Journal
POLYMER JOURNAL
Volume 54, Issue 2, Pages 223-227Publisher
SPRINGERNATURE
DOI: 10.1038/s41428-021-00575-y
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Olefin polymerization reactions mediated by diamido-supported titanium complexes are part of post-metallocene studies. The 2/MMAO catalyst system exhibits high activity for ethylene and propylene polymerization.
Olefin polymerization reactions mediated by diamido-supported titanium complexes are a part of post-metallocene studies. In the present work, dichlorido{di(3-methylindol-2-yl)phenylmethane}titanium (1) and dichlorido{ di(3-methylindol-2-yl)-2-methoxyphenylmethane}titanium (2) were applied for ethylene polymerization. The results showed that the 2/MMAO catalyst system, where MMAO is a modified methylaluminoxane, exhibits ethylene polymerization activity up to 2494 (kg of polyethylene)/(mol of Ti).h.atm. This activity is comparable to the highest known activity in catalyst systems based on diamido-supported titanium complexes. The 2/MMAO system was also active for propylene polymerization (344 (kg of polypropylene)/(mol of Ti).h.atm) to furnish atactic polypropylene.
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