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Cover Feature: Intra‐ and Interparticle Heterogeneities in Solid Activators for Single‐Site Olefin Polymerization Catalysis as Revealed by Micro‐Spectroscopy (Chem. Eur. J. 46/2018)
Author(s) -
Velthoen Marjolein E. Z.,
Meeldijk Johannes D.,
Meirer Florian,
Weckhuysen Bert M.
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201803568
Subject(s) - methylaluminoxane , homogeneous , catalysis , olefin polymerization , polymerization , spectroscopy , materials science , chemistry , olefin fiber , chemical engineering , polymer chemistry , metallocene , organic chemistry , physics , quantum mechanics , engineering , thermodynamics , polymer
Metallocenes can catalyze the polymerization reaction of olefins. Prior to reaction, they require activation on the surface of solid activator particles. The active component in solid activators is methylaluminoxane (MAO). When MAO is heterogeneously dispersed over the particles, some particles have a homogeneous MAO distribution, whereas others only have an MAO‐shell. Only the homogeneous particles are capable of activating the metallocenes. Using Energy‐Dispersive X‐Ray spectroscopy, the interparticle heterogeneity can be assessed and allowing for prediction of the catalytic activity. More information can be found in the Full Paper by B. M. Weckhuysen, et al. on page 11944.