Radiation-chemical synthesis of tetrafluoroethylene telomeres in dimethyl carbonate and dimethoxyethane

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The kinetics of radiation-induced telomerization of tetrafluoroethylene in dimethyl carbonate and dimethoxyethane was studied, new tetrafluoroethylene telomers were obtained. A detailed study of the IR spectra confirms the fact that fragments of solvent molecules are included in the composition of the obtained telomers. Selection of synthesis parameters (tetrafluoroethylene concentration, radiation dose) allows obtaining telomer solutions with the necessary characteristics for their further use as an additive in electrolytes for lithium-ion batteries.

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G. Kichigina

Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS

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Email: kga@icp.ac.ru
俄罗斯联邦, Chernogolovka

P. Kushch

Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS

Email: kga@icp.ac.ru
俄罗斯联邦, Chernogolovka

G. Baimuratova

Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS

Email: kga@icp.ac.ru
俄罗斯联邦, Chernogolovka

N. Slesarenko

Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS

Email: kga@icp.ac.ru
俄罗斯联邦, Chernogolovka

O. Kraevaya

Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS

Email: kga@icp.ac.ru
俄罗斯联邦, Chernogolovka

O. Yarmolenko

Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS

Email: kga@icp.ac.ru
俄罗斯联邦, Chernogolovka

D. Kiryukhin

Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS

Email: kga@icp.ac.ru
俄罗斯联邦, Chernogolovka

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2. Fig. 1. Dependences of the yield of TFE/DMC telomers on the irradiation dose at STFE ~4.0 wt. % (a) and on the concentration of TFE at a dose of 5 kGy (b).

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3. Fig. 2. IR spectra of the TFE/DMC and DMC telomers.

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4. Fig. 3. IR spectra of TFE/DMC telomers obtained at different TFE concentrations (a) and dependences of the relative intensities of the AB of the end groups of telomers on STFE (b).

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5. Fig. 4. High-resolution NMR spectra on 1H nuclei of DMC (a) and the telomer of TFE/DMC (b).

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6. Fig. 5. Fragments of the IR spectra of DME and TFE/DME telomers obtained at different TFE concentrations.

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