at Google ScholarTitle 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: https://doi.org/10.1002/ange.202216464
Abstract in another language
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 |
|---|---|
| Refereed: | Yes |
| 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 |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science 500 Science > 540 Chemistry |
| Date Deposited: | 16 Feb 2023 08:37 |
| Last Modified: | 20 Feb 2023 08:25 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/73690 |