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Synthesis, characterisation and slurry phase ethylene polymerisation of rac-(PhBBI*)ZrCl2 immobilised on modified layered double hydroxides

Abstract:
Rac- and meso-bis(1-hexamethylindenyl)phenylborane zirconium dichloride, {rac-, meso-(PhBBI*)ZrCl2} has been synthesised and fully characterised. The slurry phase ethylene polymerisation performance of rac-(PhBBI*)ZrCl2 immobilised on a range of methylaluminoxane (MAO)-modified, solvent-dispersed, high surface area layered double hydroxides (AMO/AIM-MgxAl-CO3 LDHs) have been studied. The polymerisation activities show a strong dependence on the nature of the LDH. Rac-(PhBBI*)ZrCl2 supported on a MAO-modified 1-hexanol dispersed [Mg0.73Al0.27(OH)2][CO3]0.135 LDH displayed a maximum ethylene polymerisation activity of 6641 kgPE molZr−1 h−1 bar−1 at 70 °C and 2 bar ethylene. Benchmarking studies reveal that some of the rac-(PhBBI*)ZrCl2 supported catalysts outperform a range of commonly used industrial metallocene PE catalysts.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.mcat.2019.02.025

Authors


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Institution:
University of Oxford
Department:
Chemistry
Sub department:
Inorganic Chemistry
Role:
Author
ORCID:
0000-0003-2062-9546


Publisher:
Elsevier
Journal:
Molecular Catalysis More from this journal
Volume:
468
Pages:
139-147
Publication date:
2019-03-06
Acceptance date:
2019-02-28
DOI:
ISSN:
2468-8231


Language:
English
Keywords:
Pubs id:
pubs:981374
UUID:
uuid:a485c0ef-95cf-40cb-88a9-7586c5d94cca
Local pid:
pubs:981374
Source identifiers:
981374
Deposit date:
2019-04-08

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