Boryl-substituted Zirconocene Dichloride Complexes as Catalyst Precursors for Homogeneous Ethylene Polymerization

For lipophilic catalyst precursors, this can be obtained in the form of aqueous miniemulsions of solutions of the catalyst precursor in a small amount of organic solvent, or

Ethylene polymerization was carried out under atmospheric pressure in toluene in a 500 mL glass reactor equipped with a mechanical stirrer.. Toluene (200 mL) was introduced into

By contrast to polymerization in the absence of water, or polymerization in aqueous suspension, in the highly disperse emulsion system incorporation of butadiene occurs in a

Very similar UV-vis spectroscopic observations pertain also to the formation of zirconocene hydride complexes in the industrially employed catalysts

and multiple insertion of acrylates affords low molecular weight polyacrylate via an insertion mechanism.~·6 Polymerization of ethylene and I-olefins can be carried

Activation of the dichloro complexes with MAO affords active catalysts for the polymerization of ethylene to high molecular weight linear polyethylene and for

Motivated by previous reported aminopyridinato-, amidinato- and guanidinato-stabilized rare earth and transition metal catalyst systems, which are highly active in

Subsequent metallation reactions of the resulting lithiated ligands with one equivalent of zirconium tetrachloride or hafnium tetrachloride in diethyl ether yielded the