电邮这篇文章 Comparative ir study of tetrafluoroethylene telomeres exposed to gamma irradiation in air and in vacuum
- 作者: Shul'ga Y.M.1, Kichigina G.A.1, Kushch P.P.1, Kiryukhin D.P.1
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隶属关系:
- Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS
- 期: 卷 59, 编号 4 (2025)
- 页面: 263-267
- 栏目: RADIATION CHEMISTRY
- URL: https://bakhtiniada.ru/0023-1193/article/view/304611
- DOI: https://doi.org/10.31857/S0023119325040101
- EDN: https://elibrary.ru/ayfmat
- ID: 304611
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详细
Five samples of tetrafluoroethylene (TFE) telomers with different monomer concentrations (Сi) in carbon tetrachloride were obtained by radiation telomerization. It was found that the IR spectra of the obtained telomers differ from the IR spectrum of polytetrafluoroethylene mainly by the presence of an absorption band of terminal CCl3 groups at 850 cm–1, the intensity of which (I850) increases with decreasing Сi. It was shown that the dependence of I850 on Сi is well described by a fractional rational function. Then, dry telomers were treated with 60Co γ-rays with a total dose of 1020 kGy both in air and vacuum. A detailed analysis of the IR spectra of the irradiated samples showed that in vacuum, transformation or detachment of terminal CCl3 groups occurs. When telomeres are irradiated in air, in addition to this, the formation of carboxyl (-COOH) groups is observed. If the stability of the telomere is associated with the formation of -COOH groups, then for the studied series of telomeres, the stability increases with the growth of Сi.
作者简介
Yu. Shul'ga
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS
Email: kga@icp.ac.ru
Chernogolovka, Russia
G. Kichigina
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS
Email: kga@icp.ac.ru
Chernogolovka, Russia
P. Kushch
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS
Email: kga@icp.ac.ru
Chernogolovka, Russia
D. Kiryukhin
Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry of the RAS
编辑信件的主要联系方式.
Email: kga@icp.ac.ru
Chernogolovka, Russia
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