Publications by the same author
plus in the repository
plus in Google Scholar

Bibliografische Daten exportieren
 

The Highly Controlled and Efficient Polymerization of Ethylene

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00007086
URN to cite this document: urn:nbn:de:bvb:703-epub-7086-4

Title data

Goller, Alexander ; Obenauf, Johannes ; Kretschmer, Winfried ; Kempe, Rhett:
The Highly Controlled and Efficient Polymerization of Ethylene.
In: Angewandte Chemie International Edition. Vol. 62 (2023) Issue 8 . - e202216464.
ISSN 1521-3773
DOI der Verlagsversion: https://doi.org/10.1002/ange.202216464

[thumbnail of Angew Chem Int Ed - 2022 - Goller - The Highly Controlled and Efficient Polymerization of Ethylene.pdf]
Format: PDF
Name: Angew Chem Int Ed - 2022 - Goller - The Highly Controlled and Efficient Polymerization of Ethylene.pdf
Version: Published Version
Available under License Creative Commons BY 4.0: Attribution
Download (971kB)

Abstract

The highly controlled and efficient polymerization of ethylene is a very attractive but challenging target. Herein we report on a Coordinative Chain Transfer Polymerization catalyst, which combines a high degree of control and very high activity in ethylene oligo- or polymerization with extremely high chain transfer agent (triethylaluminum) to catalyst ratios (catalyst economy). Our Zr catalyst is long living and temperature stable. The chain length of the polyethylene products increases over time under constant ethylene feed or until a certain volume of ethylene is completely consumed to reach the expected molecular weight. Very high activities are observed if the catalyst elongates 60 000 or more alkyl chains and the polydispersity of the strictly linear polyethylene materials obtained are very low. The key for the combination of high control and efficiency seems to be a catalyst stabilized by only one strongly bound monoanionic N-ligand.

Further data

Item Type: Article in a journal
DDC Subjects: 500 Science
500 Science > 540 Chemistry
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Inorganic Chemistry II > Chair Inorganic Chemistry II - Univ.-Prof. Dr. Rhett Kempe
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-7086-4
Date Deposited: 13 Jul 2023 05:51
Last Modified: 13 Jul 2023 05:52
URI: https://epub.uni-bayreuth.de/id/eprint/7086

Downloads

Downloads per month over past year