Title: SiO2/Cr monolayers and formation of polyethylene films
Authors: Wang, Jun ×
Leeman, Hugo
Schoonheydt, Robert #
Issue Date: Jul-2006
Publisher: Elsevier
Series Title: Journal of Colloid and Interface Science vol:299 issue:2 pages:713-718
Abstract: 1,3,5-tribenzylhexahydro-1,3,5-triazine-CrCl3 (TAC-CrCl3) was supported on monodisperse Stöber silica and on commercial silica particles. The monolayers of these catalyst particles were successfully prepared with Langmuir-Blodgett technique. The effect of TAC-CrCl3 molecules on the ordering and film-forming of the silica particles was investigated. The particles arrange in domains of hexagonal ordering, but the ordering of particles in the monolayer decreases with increasing Cr loading. These hybrid monolayers are active polymerization catalysts. After polymerization, a relatively rough layer of polyethylene molecules covers the catalyst monolayer and this layer is hydrophobic. The monolayers and the polymers coating films were characterized by IR, UV-vis-NIR, and SEM. The method provides a way to fabricate polyethylene films on silica monolayers.
ISSN: 0021-9797
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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