Ontology highlight
ABSTRACT:
SUBMITTER: Delley MF
PROVIDER: S-EPMC4136591 | biostudies-literature | 2014 Aug
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20140707 32
Mononuclear Cr(III) surface sites were synthesized from grafting [Cr(OSi(O(t)Bu)3)3(tetrahydrofurano)2] on silica partially dehydroxylated at 700 °C, followed by a thermal treatment under vacuum, and characterized by infrared, ultraviolet-visible, electron paramagnetic resonance (EPR), and X-ray absorption spectroscopy (XAS). These sites are highly active in ethylene polymerization to yield polyethylene with a broad molecular weight distribution, similar to that typically obtained from the Phill ...[more]