Highly Tunable Catalyst Supports for Single-Site Ethylene Polymerization
Source abstract
Abstract
A new class of tunable crystalline solid supports for metal complexes has been synthesized and used for ethylene polymerization. We developed a family of high surface area, highly dispersible layered double hydroxides (AMO–LDHs) which, on treatment with alkyl aluminum activators, are able to support metallocene and nonmetallocene complexes to make active catalyst systems for the slurry polymerization of ethylene. We show that the chemical composition of the AMO–LDH support can dramatically affect catalyst activity, polymer morphology, and polymer microstructure. A Zr K-edge EXAFS study of these active catalysts has enabled us to observe a metallocene-derived single-center catalytic species in close proximity to the support.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Organometallic Complex Synthesis and Catalysis · Carbon dioxide utilization in catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA, United Kingdom
Center for Catalysis, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, 272 Rama VI Road, Thung Phayathai, Ratchathewi, Bangkok 10400, Thailand
UK Catalysis Hub, Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Oxon, Didcot OX11 0FA, United Kingdom
Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, United Kingdom
College of Environmental Science and Engineering, Beijing Forestry University, 35 Qinghua East Road, Haidian District, Beijing 100083, China
Funding
Ministry of Education of the People's Republic of China · SCG Chemicals Co.,LTD.
References (60)
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