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Verfasst von:Hansen, Helge-Boj [VerfasserIn]   i
 Wadepohl, Hubert [VerfasserIn]   i
 Enders, Markus [VerfasserIn]   i
Titel:Improved single-site chromium catalysts with electron rich indenyl ligands for the formation of ultrahigh molecular weight polyethylene
Verf.angabe:Helge-Boj Hansen, Hubert Wadepohl, and Markus Enders
Jahr:2021
Umfang:9 S.
Fussnoten:First published: 10 February 2021 ; Gesehen am 24.11.2022
Titel Quelle:Enthalten in: European journal of inorganic chemistry
Ort Quelle:Weinheim : Wiley-VCH, 1998
Jahr Quelle:2021
Band/Heft Quelle:(2021), 13, Seite 1278-1286
ISSN Quelle:1099-0682
Abstract:Quinolyl functionalized indenyl chromium complexes with different substitution patterns were synthesized and evaluated as single site catalysts in ethylene polymerization. Adding substituents like a fused cyclohexyl ring or a Si(CH3)3 group to the indenyl moiety improve complex stability, solubility and catalytic activity compared to the unsubstituted analogues. Furthermore, the ability to incorporate 1-hexene into the polymer chain increased. Ultrahigh molecular weight polyethylene (UHMW-PE) or linear low density polyethylene (LLD-PE) with very high molecular weight was obtained. Although other catalysts are able to incorporate more 1-hexene only a few systems are known, that combine substantial 1-hexene incorporation with very high activity and such high molecular weights. Consequently, these catalytic systems are attractive candidates in industrial processes for the production of improved polyethylene materials.
DOI:doi:10.1002/ejic.202001157
URL:kostenfrei: Volltext: https://doi.org/10.1002/ejic.202001157
 kostenfrei: Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/ejic.202001157
 DOI: https://doi.org/10.1002/ejic.202001157
Datenträger:Online-Ressource
Sprache:eng
K10plus-PPN:1823558577
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