Universität zu Köln

Fiorentino, Antonio, Panariti, Persi, van Turnhout, Lars ORCID: 0000-0002-5222-6250, Spronck, Mitch, Klein, Axel ORCID: 0000-0003-0093-9619, Schmitz, Simon, Rastogi, Sanjay, Blom, Burgert and Romano, Dario (2020). Immobilization of [VCl3(N-2,6-Me2C6H3)] Complex on Silica Supports: Synthesis and Catalytic Testing for Ethylene Polymerization. Ind. Eng. Chem. Res., 59 (28). WASHINGTON: AMER CHEMICAL SOC. ISSN 0888-5885

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Abstract

The heterogenization of 2,6-dimethylarylimido-vanadium(V) dichloride via chemical tethering on insoluble silica supports is reported. The effects of the silica particle size, drying conditions, and the reaction time were investigated. The drying conditions of the support were found to be a crucial parameter: drying temperatures over 400 degrees C were needed to achieve successful catalysis. The supported catalytic systems were characterized by Fourier-transform infrared (FT-IR) spectroscopy, transmission electron microscopy-energy-dispersive X-ray (TEM-EDX), and inductively coupled plasma mass spectroscopy (ICP-MS), while the polymers were characterized by FT-IR, differential scanning calorimetry (DSC), and rheology. Ethylene polymerization tests were performed employing the prepared heterogenized catalysts with methylaluminoxane/diethylaluminum chloride as a cocatalyst. The supported catalyst precursor, when activated with diethylaluminum chloride, promotes the synthesis of polyethylene with seemingly controlled particle size in the absence of reactor fouling, suggesting the successful immobilization of the complex over the inert support. The resulting polymer shows features of ultrahigh-molecular-weight polyethylene (UHMWPE). These findings present a proof-of-concept for a new approach toward the heterogenization of arylimido-vanadium complexes.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Fiorentino, Antonio UNSPECIFIED UNSPECIFIED UNSPECIFIED Panariti, Persi UNSPECIFIED UNSPECIFIED UNSPECIFIED van Turnhout, Lars UNSPECIFIED orcid.org/0000-0002-5222-6250 UNSPECIFIED Spronck, Mitch UNSPECIFIED UNSPECIFIED UNSPECIFIED Klein, Axel UNSPECIFIED orcid.org/0000-0003-0093-9619 UNSPECIFIED Schmitz, Simon UNSPECIFIED UNSPECIFIED UNSPECIFIED Rastogi, Sanjay UNSPECIFIED UNSPECIFIED UNSPECIFIED Blom, Burgert UNSPECIFIED UNSPECIFIED UNSPECIFIED Romano, Dario UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-326321
DOI:	10.1021/acs.iecr.0c01908
Journal or Publication Title:	Ind. Eng. Chem. Res.
Volume:	59
Number:	28
Date:	2020
Publisher:	AMER CHEMICAL SOC
Place of Publication:	WASHINGTON
ISSN:	0888-5885
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Inorganic Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MOLECULAR-WEIGHT POLYETHYLENE; OLEFIN POLYMERIZATION; COCATALYST; SURFACE Multiple languages Engineering, Chemical Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/32632