Polymerization of Ethylene in the Presence of Various Ligand Organometallic Catalytic Systems

Abstract

This work presents the results on the preparation of new readily available zirconium-containing arylimine complex catalytic systems and their application together with metallocenes in ethylene polymerization. For this purpose, zirconium complexes with grafted ionic liquid type ligands were synthesized and tested in the ethylene polymerization process. On the other hand, it is known that one of the main industrial catalysts for the polymerization process of ethylene is dicycopentadienyl titanium and zirconium dichloride. Therefore, one of the main objectives of the work is to test the using of the newly synthesized complexes with the industrial Cp2TiCl2 catalyst. The products obtained were identified by various physicochemical methods and it was found that these catalytic systems allow one to control the structure and composition of the products obtained.

Molecular Modelling of Ionic Liquid Ligands based Zirconium Complexes for Ethylene Copolymerization with Octene-1

“…The released HCl binds to the ligand by forming an ionic bond with the -orbital of azomethine group and form strong metal complex. The obtained complexes are conventionally called "ionic-liquid ligand based complexes" due to forming quaternary ammonium salt-type structures (Qanbarli 2020, Ganbarli 2022).…”

“…Our previous studies have shown that these catalytic systems are highly effective in the oligomerization (Azizov 2015, Khamiyev 2017, Khamiyev 2016) of ethylene and the polymerization of ethylene in tandem systems with metallocene catalytic systems (Qanbarli 2020).…”

“…Application of IL as solvent lead to an increase the activity of the catalytic systems. Various analysis methods including infrared spectroscopy, DSC and X-ray diffraction were applied for identification the structure of the synthesized PE (Qanbarli 2020).…”