Abstract
The polymerization of hexene-1, octene-1 and decene-1 with a modified Ziegler catalyst based on the product of interaction of TiCl4, Et2AlCl, and n-Bu2O in toluene has been studied. Et2AlCl, i-Bu2AlCl, and a combination of Et2AlCl with MgBu2 were used as cocatalysts. The addition of a small amount of MgBu2 to Et2AlCl resulted in a sharp increase in the catalytic system activity along with decreases in the molecular masses of the formed polymers. It has been shown that a change of [Mg]/[Al] ratio makes it possible to produce polyolefins in a wide range of molecular masses with high effectiveness. The above mentioned polymers are amorphous ultrahigh molecular materials with predominantly isotactic structure.
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Original Russian Text © L.A. Rishina, S.S. Lalayan, N.M. Galashina, E.O. Perepelitsina, T.I. Medintseva, Y.V. Kissin, 2014, published in Russian in Vysokomolekulyarnye Soedineniya, Ser. B, 2014, Vol. 56, No. 1, pp. 27–33.
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Rishina, L.A., Lalayan, S.S., Galashina, N.M. et al. Polymerization of linear higher α-olefins with a modified Ziegler catalyst. Polym. Sci. Ser. B 56, 25–30 (2014). https://doi.org/10.1134/S1560090414010096
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DOI: https://doi.org/10.1134/S1560090414010096