In:
Polymers, MDPI AG, Vol. 15, No. 14 ( 2023-07-19), p. 3095-
Abstract:
Modern industry of advanced polyolefins extensively uses Group 4 metallocene and post-metallocene catalysts. High-throughput polyolefin technologies demand the use of heterogeneous catalysts with a given particle size and morphology, high thermal stability, and controlled productivity. Conventional Group 4 metal single-site heterogeneous catalysts require the use of high-cost methylalumoxane (MAO) or perfluoroaryl borate activators. However, a number of inorganic phases, containing highly acidic Lewis and Brønsted sites, are able to activate Group 4 metal pre-catalysts using low-cost and affordable alkylaluminums. In the present review, we gathered comprehensive information on MAO- and borate-free activating supports of different types and discussed the surface nature and chemistry of these phases, examples of their use in the polymerization of ethylene and α-olefins, and prospects of the further development for applications in the polyolefin industry.
Type of Medium:
Online Resource
ISSN:
2073-4360
DOI:
10.3390/polym15143095
Language:
English
Publisher:
MDPI AG
Publication Date:
2023
detail.hit.zdb_id:
2527146-5
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