Abstract
The effect of internal and external electron donors on the polymerization of propylene in a liquid monomer or a hydrocarbon diluent (hexane) in the presence of a titanium-magnesium nanocatalyst activated with an organoaluminum compound (triethylaluminum, triisobutylaluminum) and the properties of the resulting PP are studied. The polymerization of propylene in the absence of internal and external donors yields atactic PP, whereas, in the presence of a catalyst containing an aryl internal donor, isotactic PP is formed. The activity and stereospecificity of the catalytic system substantially depends on the method of electron-donor introduction. The thermal treatment of the catalyst with an electron donor affects its activity and stereospecificity.
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References
Yu. V. Kissin, Isospecific Polymerization of Olefins with Heterogeneous Ziegler-Natta Catalysts (Springer, New York, 1985).
G. D. Bukatov, S. A. Sergeev, V. A. Zakharov, and A. G. Potapov, Kinet. Katal. 49, 824 (2008).
N. Kashiwa, Polym. J. (Tokyo) 12, 603 (1980).
P. Galli, P. Barbe, G. Guidetti, et al., Eur. Polym. J. 19, 19 (1983).
I. Frolov, V. Kleiner, B. Krentsel, et al., Makromol. Chem. 194, 2309 (1993).
B. A. Krentsel, Yu. V. Kissin, V. I. Kleiner, and L. L. Stotskaya, Polymers and Copolymers of Higher α-Olefins (Hanser, Vienna, 1997).
Yu. V. Kissin and L. A. Rishina, Polymer Science, Ser. A 50, 1101 (2008) [Vysokomol. Soedin., Ser. A 50, 1911 (2008)].
L. A. Novokshonova, I. N. Meshkova, T. M. Ushakova, et al., Polymer Science, Ser. A 50, 1136 (2008) [Vysokomol. Soedin., Ser. A 50, 1953 (2008)].
DE Patent No. 2643143 (1977).
US Patent No. 4298718 (1981).
US Patent No. 4535068 (1985).
US Patent No. 5077357 (1991).
US Patent No. 0319 227 (1989).
RF Patents No. 2152404 (2000); No. 2191196 (2002).
RF Patent No. 2290413 (2006).
O. V. Smetannikov, E. A. Mushina, M. S. Chinova, et al., Polymer Science, Ser. A 48, 793 (2006) [Vysokomol. Soedin., Ser. A 48, 1391 (2006)].
O. V. Smetannikov, Candidate’s Dissertation in Chemistry (Moscow, 2004).
E. M. Antipov, E. A. Mushina, O. V. Smetannikov, et al., Proizvod. Ispol’zov. Elastomer., No. 1, 8 (2008).
M. I. Zakirov, V. I. Kleiner, O. I. Adrov, et al., in Proceedings of Scientific Conference of TIPS RAS devoted to the 75 Anniversary of the Institute, Moscow, 2009, p. 141.
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Original Russian Text © M.I. Zakirov, V.I. Kleiner, O.I. Adrov, I.E. Nifant’ev, B.F. Shklyaruk, V.S. Stroganov, P. M. Nedorezova, A.N. Klyamkina, 2010, published in Russian in Vysokomolekulyarnye Soedineniya, Ser. B, 2010, Vol. 52, No. 10, pp. 1835–1839.
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Zakirov, M.I., Kleiner, V.I., Adrov, O.I. et al. Effect of electron donors on polymerization of propylene in the presence of titanium-magnesium catalysts. Polym. Sci. Ser. B 52, 584–588 (2010). https://doi.org/10.1134/S1560090410090101
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DOI: https://doi.org/10.1134/S1560090410090101