6533b820fe1ef96bd1279af7
RESEARCH PRODUCT
Ethylene polymerization by the thermally unique 1-[2-(bis(4-fluoro phenyl)methyl)-4,6- dimethylphenylimino]-2-aryliminoacenaphthylnickel precursors
Yang SunErlin YueWen-hua SunQifeng XingZygmunt FlisakShizhen Dusubject
Inorganic Chemistrychemistry.chemical_compoundNickelChemistryBromidePolymer chemistryDispersityMethylaluminoxaneTetrahedral molecular geometrychemistry.chemical_elementThermal stabilityPolyethyleneBranching (polymer chemistry)description
A series of 1-[2-(bis(4-fluorophenyl)methyl)-4,6-dimethylphenylimino]-2-aryliminoacenaphthylene derivatives together with the corresponding nickel bromide complexes was synthesized and characterized. Representative complexes C2 and C5 were characterized by the single-crystal X-ray diffraction, revealing a distorted tetrahedral geometry. Upon activation with either methylaluminoxane (MAO) or ethylaluminum sesquichloride (EASC), all nickel complexes exhibited high activities towards ethylene polymerization, producing polyethylene with a relatively low degree of branching and narrow polydispersity. Complex C1 maintained good activity at elevated reaction temperatures, which indicates significant thermal stability of the active species.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-03-13 | Dalton Transactions |