Tetrafluoroethylene telomerization initiated by benzoyl peroxide
- Autores: Bolshakov A.I.1, Kuzina S.I.1, Kiryukhin D.P.1
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Afiliações:
- Institute of Problems of Chemical Physics
- Edição: Volume 91, Nº 3 (2017)
- Páginas: 482-489
- Seção: Chemical Kinetics and Catalysis
- URL: https://journals.rcsi.science/0036-0244/article/view/169323
- DOI: https://doi.org/10.1134/S0036024417030037
- ID: 169323
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Resumo
The radical telomerization of tetrafluoroethylene initiated by benzoyl peroxide (BP) photolysis at λ ≥ 365 nm is studied in acetone, dichloromethane, carbon tetrachloride, and Freon 114B2 at 25°C. The products of synthesis are a mixture of telomers of different molar masses, segregated into soluble and insoluble fractions. To characterize the radicals initiating telomerization, crystalline BP and its solution in ethanol are subjected to low-temperature (77 K) photolysis, with the liquid system serving as a model for BP behavior in solutions of telogens. It is established that radicals are not only initiators but also participate in chain termination reactions, lowering the telomers’ molar mass and thus raising the proportion of the soluble fraction. Telomerization initiated by an initiator compound versus initiation by gamma radiation are compared and discussed.
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Sobre autores
A. Bolshakov
Institute of Problems of Chemical Physics
Email: kir@icp.ac.ru
Rússia, Chernogolovka, Moscow oblast, 142432
S. Kuzina
Institute of Problems of Chemical Physics
Email: kir@icp.ac.ru
Rússia, Chernogolovka, Moscow oblast, 142432
D. Kiryukhin
Institute of Problems of Chemical Physics
Autor responsável pela correspondência
Email: kir@icp.ac.ru
Rússia, Chernogolovka, Moscow oblast, 142432
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