A Titanium(IV) Complex with an OSO-Type Ligand as a Catalyst for the Synthesis of Ultrahigh-Molecular-Weight Polyethylene

Tuskaev VA; Gagieva SC; Lyadov AS; Kurmaev DA; Zubkevich SV; Shatokhin SS; Simikin VE; Mikhailik ES; Golubev EK; Nikiforova GG; Buzin MI; Vasil'ev VG; Bulychev BM

Petroleum Chemistry, Vol.60, No.3, 329-333, 2020

DOI10.1134/S0965544120030226 Export Citation

A Titanium(IV) Complex with an OSO-Type Ligand as a Catalyst for the Synthesis of Ultrahigh-Molecular-Weight Polyethylene

Tuskaev VA, Gagieva SC, Lyadov AS, Kurmaev DA, Zubkevich SV, Shatokhin SS, Simikin VE, Mikhailik ES, Golubev EK, Nikiforova GG, Buzin MI, Vasil'ev VG, Bulychev BM

Coordination compounds of titanium(IV) with OSO-type ligands have been prepared and characterized, and their catalytic activity in ethylene polymerization has been studied. It has been shown that in the presence of an {Et2AlCl + Bu2Mg} binary cocatalyst, the activity of the titanium-containing catalyst system reaches 1629 kgPE mol(Ti)(-1) h(-1) and leads to the preparation of ultrahigh-molecular-weight polyethylene (UHMWPE). The UHMWPE reactor powder has been processed by a solvent-free method to high-strength and high-modulus films (sigma = 2.32 GPa, E = 125 GPa).

Keywords:titanium compounds;OSO-type ligands;polymerization of ethylene;ultrahigh-molecular-weight polyethylene;solid-phase processing;mechanical properties of UHMWPE