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Dissymmetric bis(indenyl) zirconium dichloride complexes as catalyst precursors for homogeneous ethylene polymerization
Joint Authors
Source
Issue
Vol. 10, Issue 2 (30 Jun. 2015), pp.87-97, 11 p.
Publisher
Yarmouk University Deanship of Research and Graduate Studies
Publication Date
2015-06-30
Country of Publication
Jordan
No. of Pages
11
Main Subjects
Topics
Abstract EN
Six new dissymmetric bis(indenyl) zirconium dichloride complexes of the type (C9H7)[C9H6-(CH2)n-O-Ar]ZrCl2 (n = 3-5 ; Ar = aryl group) bearing an unsubstituted and an ω-aryloxyalkyl substituted indenyl ligand were synthesized, characterized, activated with methylalumoxane (MAO) and tested for ethylene polymerization.
The activities of the catalysts depend very much on the steric bulk of the O-Ar group as well as on the CH2-chain length between the aryloxy group and the indenyl ligand.
The best activity (26233 kg PE / mol cat h) was obtained with catalyst precursor 4a (n = 3 ; Ar = 2- biphenyl).
Obviously the biphenyl group and the limited length of the CH2-chain protect the oxygen atom very efficiently from coordination to an active site of the same or a neighboured molecule during the polymerization process.
American Psychological Association (APA)
Ahmad, Khalil& Alt, Helmut G.. 2015. Dissymmetric bis(indenyl) zirconium dichloride complexes as catalyst precursors for homogeneous ethylene polymerization. Jordan Journal of Chemistry،Vol. 10, no. 2, pp.87-97.
https://search.emarefa.net/detail/BIM-593824
Modern Language Association (MLA)
Ahmad, Khalil& Alt, Helmut G.. Dissymmetric bis(indenyl) zirconium dichloride complexes as catalyst precursors for homogeneous ethylene polymerization. Jordan Journal of Chemistry Vol. 10, no. 2 (Jun. 2015), pp.87-97.
https://search.emarefa.net/detail/BIM-593824
American Medical Association (AMA)
Ahmad, Khalil& Alt, Helmut G.. Dissymmetric bis(indenyl) zirconium dichloride complexes as catalyst precursors for homogeneous ethylene polymerization. Jordan Journal of Chemistry. 2015. Vol. 10, no. 2, pp.87-97.
https://search.emarefa.net/detail/BIM-593824
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 96-97
Record ID
BIM-593824