III International Conference

PP-II-6THE NEW Ni, Zr, Ti-CONTAINING “LIGANDCHARGED” CATALYSTS FORETHYLENE (CO)POLYMERIZATION AND THEIR ACTION MECHANISMSAliyeva R.V., Azizov A.H., Kalbaliyeva E.S., Bagirova Sh.R., Mamedova R.Z.,Azizbeili H.R., Guliyev B.V.Azerbaijan NAS Iinstitute of Petrochemical Processes, Baku, AzerbaijanE-mail: ipcp@baku-az.netDuring the last years the non-metallocene type catalysts for α-olefin polymerization haveattracted a great attention. In this connection it have been developed the new highly effectivereadily available Ni, Zr, Ti-containing “ligandcharged” precursors on the basis of stericallyhindered substituted phenol compounds. These precursors in combination with variousaluminumorganic compounds (table 1) and modifiers (table 2) provide the polyethylenesynthesis with controlled MWD parameters (2,3-89,5), molecular weight (117103-511500)and crystallinity (29-77,3 %). These precursors have been synthesized by one-stage methodand their EPR analysis have been conducted. It was shown that the mixing of ethylenepolymerization catalytic systems components, “ligandcharged” precursors andaluminumorganic compounds results in the formation of paramagnetic complexes of Ti 3+ .Magnetic-resonance characteristics (MCR) and the stability of these complexes mainlydepend on the presence of the sterically hindered phenols in the system and their nature. Ithave been discovered the bifunctional properties of “ligandcharged” precursor compounds.By the effectiveness the catalysts based on these precursors are found to be on the same levelwith metallocene type catalysts.The development of such catalysts results in obtaining of the new importantpetrochemistry products with the unique microstructure and a wide variety of properties.169