Kinetic parameters of cationic polymerization of 1,3-dienes
- Autores: Rozentsvet V.1, Kozlov V.1, Stotskaya O.1, Sablina N.1, Ivanova V.2, Tolstoy P.3
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Afiliações:
- Institute of Ecology of the Volga River Basin, Russian Academy of Sciences
- S. V. Lebedev Research Institute of Synthetic Rubber
- St. Petersburg State University
- Edição: Volume 66, Nº 6 (2017)
- Páginas: 1088-1093
- Seção: Full Articles
- URL: https://journals.rcsi.science/1066-5285/article/view/240810
- DOI: https://doi.org/10.1007/s11172-017-1858-9
- ID: 240810
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Resumo
A new technique for the determination of the concentration of active centers of polymerization and propagation rate constants for processes of cationic polymerization of conjugated dienes was proposed. The method consists of the quantitative calculation from the 13C NMR spectra of the concentration of the initial units of the polymer chain polydienes synthesized at different monomer conversions and the subsequent extrapolation of the obtained values to the zero monomer conversion. Using the proposed procedure, the chain propagation rate constants were determined for the cationic polymerization of isoprene and 1,3-pentadiene in the presence of a titanium tetrachloride–tert-butyl chloride catalytic system.
Sobre autores
V. Rozentsvet
Institute of Ecology of the Volga River Basin, Russian Academy of Sciences
Autor responsável pela correspondência
Email: rozentsvet@mail.ru
Rússia, 10 ul. Komzina, Tol´yatti, 445003
V. Kozlov
Institute of Ecology of the Volga River Basin, Russian Academy of Sciences
Email: rozentsvet@mail.ru
Rússia, 10 ul. Komzina, Tol´yatti, 445003
O. Stotskaya
Institute of Ecology of the Volga River Basin, Russian Academy of Sciences
Email: rozentsvet@mail.ru
Rússia, 10 ul. Komzina, Tol´yatti, 445003
N. Sablina
Institute of Ecology of the Volga River Basin, Russian Academy of Sciences
Email: rozentsvet@mail.ru
Rússia, 10 ul. Komzina, Tol´yatti, 445003
V. Ivanova
S. V. Lebedev Research Institute of Synthetic Rubber
Email: rozentsvet@mail.ru
Rússia, 1 ul. Gapsal´skaya, St. Petersburg, 198035
P. Tolstoy
St. Petersburg State University
Email: rozentsvet@mail.ru
Rússia, 7 Universitetskaya nab, St. Petersburg, 199034