Study of the gamma radiation effect on the molecular structure of tetrafluoroethylene telomers and fluorotelomeric glass fabric coatings by Raman spectroscopy

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Abstract

A spectral study of radiation-synthesized telomers of tetrafluoroethylene with different end groups has been carried out by Raman spectroscopy for the first time. The effect of gamma radiation on the molecular structure of telomeres and hydrophobic coatings of aluminoborosilicate glass fabric based on them was studied. Changes in the molecular and morphological structure of telomeres are observed under the action of gamma radiation.

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About the authors

G. A. Kichigina

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

Author for correspondence.
Email: kga@icp.ac.ru
Russian Federation, Chernogolovka

P. P. Kusch

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

Email: kga@icp.ac.ru
Russian Federation, Chernogolovka

M. V. Zhidkov

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

Email: kga@icp.ac.ru
Russian Federation, Chernogolovka

Yu. M. Shulga

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

Email: kga@icp.ac.ru
Russian Federation, Chernogolovka

D. P. Kiryukhin

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

Email: kga@icp.ac.ru
Russian Federation, Chernogolovka

E. V. Golosov

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

Email: kga@icp.ac.ru
Russian Federation, Chernogolovka

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2. Fig. 1. Confocal images of non-irradiated glass fabric samples with telomer coating: 1 – original glass fabric sample, 2 – TFE/PFCB, 3 – TFE/Freon113+NH3, 4 – TFE/Freon113+C2H5OH.

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3. Fig. 2. Raman spectra of glass fabric and telomeric coatings before and after irradiation with a dose of 600 kGy.

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4. Fig. 3. Surface of TFE/acetone (a, g) and PTFE (b, c, d, e) telomer samples before and after irradiation with a dose of 600 kGy.

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5. Fig. 4. Raman spectra of TFE and PTFE telomer powders before and after irradiation.

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6. Fig. 5. Raman spectra of unirradiated telomer TFE/freon 113+ethanol, freon 113 and ethanol.

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7. Fig. 6. Raman spectra of irradiated telomer TFE/freon113 + ethanol at different points of the sample and images of these points. Irradiation dose 600 kGy.

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