title: Gel permeation chromatography as a combinatorial screening method: identification of highly active heteroligated phenoxyimine polymerization catalysts.
abstract: A number of mixed-ligand bis(phenoxyimine) titanium catalysts were screened using a pooled combinatorial approach. Gel permeation chromatography (GPC) was used to analyze polypropylene mixtures, leading to the identification of highly active catalysts. Complexes with only one ortho-fluorinated ligand are significantly more active than homoligated complexes for the syndiospecific polymerization of propylene.
authors.affiliation: Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, NY 14853, USA.
authors.forename: Andrew F
authors.initials: AF
authors.lastname: Mason
authors.forename: Geoffrey W
authors.initials: GW
authors.lastname: Coates