Abstract: The kinetics of polymerization of ethylene and its copolymerization with 1-octene and 4-methyl-1-pentene catalyzed by four new 2,6-bis(imino)pyridyl iron complexes containing bulky substituents in the ortho position of the aryl ring (R2 = cyclopentyl, R3 = H, Me, cyclopentyl, R4 = H, Me) combined with methylaluminoxane were studied at various temperatures and ethylene pressures. The polymerizing activity of the synthesized complexes was measured in the temperature range 50-80°C and at pressures varying from 0.1 to 0.55 MPa. Using the DSC method, the thermal properties of the samples of PE were determined and their molecular characteristics estimated. A complex with two ortho cyclopentyl substituents was found to exhibit high thermal stability. The produced polymer samples possess high density (965-972 kg/m3), thus indicating the absence of branching in the macromolecules. The examined catalysts proved to be inactive in the copolymerization of ethylene with 1-octene and 4-methyl-1-pentene.

Cite: Ivanchev S.S. , Tolstikov G.A. , Badaev V.K. , Ivancheva N.I. , Oleinik I.I. , Serushkin M.I. , Oleinik L.V.
Polymerization and copolymerization of ethylene with higher α-Olefins using iron chloride 2,6-bis(Imino)pyridyl derivatives-methylaluminoxane catalytic systems
Polymer Science - Series A. 2001. V.43. N12. P.1189-1192. WOS Scopus РИНЦ

Identifiers:

Web of science:	WOS:000173102200001
Scopus:	2-s2.0-0035605744
Elibrary:	13382800

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