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Formation of Isolated Titanium(III) Ions in Superactive Titanium–Magnesium Catalysts with a Low Titanium Content as Active Sites in Ethylene Polymerization Full article

Journal Catalysis Communications
ISSN: 1566-7367 , E-ISSN: 1873-3905
Output data Year: 2014, Volume: 48, Pages: 38-40 Pages count : 3 DOI: 10.1016/j.catcom.2014.01.015
Tags Active sites, Activity, EPR/ESR, Ziegler-Natta polymerization
Authors Koshevoy Evgeny I. 1 , Mikenas Tatiana B. 1 , Zakharov Vladimir A. 1 , Volodin Alexander M. 1 , Kenzhin Roman M. 1
Affiliations
1 Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, Novosibirsk 630090, Russia

Abstract: Superactive supported titanium–magnesium catalysts (TMCs) with a low titanium content (≤ 0.1 wt.%), in distinction to conventional TMCs (≥ 1 wt.%), were shown to interact with AlR3 of different compositions to produce compounds with a high (30–70%) concentration of isolated (ESR visible) Ti3 + ions. For the first time a correlation between the content of isolated Ti3 + species in these catalysts and activity in ethylene polymerization was found.
Cite: Koshevoy E.I. , Mikenas T.B. , Zakharov V.A. , Volodin A.M. , Kenzhin R.M.
Formation of Isolated Titanium(III) Ions in Superactive Titanium–Magnesium Catalysts with a Low Titanium Content as Active Sites in Ethylene Polymerization
Catalysis Communications. 2014. V.48. P.38-40. DOI: 10.1016/j.catcom.2014.01.015 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
Submitted: Nov 28, 2013
Accepted: Jan 19, 2014
Published online: Jan 28, 2014
Published print: Mar 10, 2014
Identifiers:
Web of science: WOS:000333999200009
Scopus: 2-s2.0-84894103800
Elibrary: 21865734
Chemical Abstracts: 2014:305661
Chemical Abstracts (print): 160:341396
OpenAlex: W2047556723
Citing:
DB Citing
Web of science 16
Scopus 18
Elibrary 18
OpenAlex 23
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