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). Issue 46 (19th July 2018)

• Record Type: Journal Article
• Authors: Velthoen, Marjolein E. Z.; Meeldijk, Johannes D.; Meirer, Florian; Weckhuysen, Bert M.
• Is Part Of: Chemistry. Volume 24:Issue 46(2018)
• Page Start: 11806
• Page End: 11806
• Publication Date: 2018-07-19
• Subjects: acidity -- heterogeneity -- methylaluminoxane -- polymerization -- spectroscopy; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201803568
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract : 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 .