Abstract
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 (σ = 2.32 GPa, E = 125 GPa).
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Funding
This work was supported by the Russian Foundation for Basic Research, project no. 19-03-00312. The synthesis of polymer nos. 1–3 (Table 1) was supported by the Russian Science Foundation, project no. 16-13-10502.
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The authors declare no conflict of interest to be disclosed in this paper. A.S. Lyadov is a member of the editorial board of the Neftekhimiya journal.
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Translated by E. Boltukhina
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Tuskaev, V.A., Gagieva, S.C., Lyadov, A.S. et al. A Titanium(IV) Complex with an OSO-Type Ligand as a Catalyst for the Synthesis of Ultrahigh-Molecular-Weight Polyethylene. Pet. Chem. 60, 329–333 (2020). https://doi.org/10.1134/S0965544120030226
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DOI: https://doi.org/10.1134/S0965544120030226