Living polymerization of 4-methyl-2-pentyne and 1-trimethylsilyl-1-propyne initiated by NbCl5-Ph4Sn catalyst |
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| Authors: | E. Yu. Sultanov M. Yu. Gorshkova E. N. Semenistaya V. S. Khotimsky |
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| Affiliation: | 1. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow, 119991, Russia
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| Abstract: | The polymerization of 4-methyl-2-pentyne and 1-trimethylsilyl-1-propyne initiated by catalytic systems based on niobium pentachloride and Et3SiH, Bu4Sn, Ph4Sn, and Ph3SiH as cocatalysts has been investigated. Direct evidence for the living polymerization of 4-methyl-2-pentyne and 1-trimethylsilyl-1-propyne with the NbCl5-Ph4Sn catalytic system is derived. These are the linear molecular mass dependence on conversion and the continuation of chain propagation after introduction of a new monomer portion. |
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