Conclusions
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1.
The effect of the nature of the catalyst on the change in the catalytic activity with time in the polymerization of propylene was studied for the example of five TiCl3 samples obtained by different methods.
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2.
It was shown that, independent of the method of preparing the catalyst and the employed cocatalyst, the change in the polymerization rate with time is described by one equation.
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3.
It was established that the deactivation rate depends on the monomer concentration. A possible mechanism of the deactivation is discussed.
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Literature cited
V. I. Tsvetkova, A. N. Plyusnin, R. F. Bogomolova, B. A. Uvarov, and N. M. Chirkov, Vysokomol. Soedin. A,2, 1817 (1969).
N. S. Bukharkina, V. P. Konovalov, B. V. Erofeev, N. I. Sosfenov, B. A. Uvarov, and D. M. Lisitsyn, Izv. Akad. Nauk Belorussk. SSR, Ser. Khim., 20 (1981).
B. A. Uvarov, V. I. Tsvetkova, F. S. D'yachkovskii, et al., Inventor's Certificate 597,201, Nov. 10, 1975.
. A. Uvarov, V.I. Tsvetkova, F. S. D'yachkovskii, and N. M. Bogomolova, in: Complex Organometallic Catalysts for the Polymerization of Olefins [in Russian], Chernogolovka (1977), p. 110.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No, 12, pp. 2811–2813, December, 1982.
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Uvarov, B.A., Tsvetkova, V.I., Mkrtchyan, S.A. et al. Nature of deactivation processes during polymerization of propylene on TiCl3 AND Et2AlCl catalytic system. Russ Chem Bull 31, 2485–2487 (1982). https://doi.org/10.1007/BF00957727
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DOI: https://doi.org/10.1007/BF00957727