Conclusions
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1.
Catalysts based on WCl6, activated by either permethylpolysilanes or permethylpolygermanes, are active in the polymerization of cycloolefins, with ring opening by the metathesis scheme.
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2.
The use of permethylpolygermanes as cocatalysts leads to polymers that contain at least 90% of cis links.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 942–943, April, 1982.
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Kolesnikov, S.P., Mitenina, T.L., Shteinshneider, A.Y. et al. Catalysts for polymerization of cycloolefins based on tungsten hexachloride with permethylpolysilanes and permethylpolygermanes. Russ Chem Bull 31, 834–835 (1982). https://doi.org/10.1007/BF00950035
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DOI: https://doi.org/10.1007/BF00950035