Electron diffraction structure analysis of the amorphous polytetrafluoroethylene film
- Authors: Kulygin A.K.1, Sadovskaya N.V.1,2, Avilov A.S.1, Vasin O.I.3
-
Affiliations:
- Shubnikov Institute of Crystallography of Kurchatov Complex of Crystallography and Photonics of NRC “Kurchatov Institute”
- Limited Liability Company “Arflon”
- Stemenko Krasnodar Higher Military School
- Issue: Vol 69, No 3 (2024)
- Pages: 405-421
- Section: STRUCTURE OF ORGANIC COMPOUNDS
- URL: https://rjdentistry.com/0023-4761/article/view/673170
- DOI: https://doi.org/10.31857/S0023476124030058
- EDN: https://elibrary.ru/XOWMCS
- ID: 673170
Cite item
Abstract
A thin amorphous film of fluoroplast (polytetrafluoroethylene) was obtained and studied by the electron diffraction structure analysis methods. The previously developed method of constructing the radial distribution function of atoms by the electron diffraction patterns from amorphous structures is applied, based on the determination of the normalization coefficient by varying the thermal parameter. The possibility of applying and necessary adaptations of this technique for the studied polytetrafluoroethylene samples are shown, taking into account its not quite usual amorphous structure due to the rigid spiral conformation of polymer chains …–CF2–…, which does not allow us to speak about the complete absence of the long-range order of the arrangement of atoms along the direction of the spiral axis. The measurements were carried out using the developed registration system on the electron diffraction camera EMR-102.
Full Text

About the authors
A. K. Kulygin
Shubnikov Institute of Crystallography of Kurchatov Complex of Crystallography and Photonics of NRC “Kurchatov Institute”
Author for correspondence.
Email: avilovanatoly@mail.ru
Russian Federation, Moscow
N. V. Sadovskaya
Shubnikov Institute of Crystallography of Kurchatov Complex of Crystallography and Photonics of NRC “Kurchatov Institute”; Limited Liability Company “Arflon”
Email: avilovanatoly@mail.ru
Russian Federation, Moscow; Moscow
A. S. Avilov
Shubnikov Institute of Crystallography of Kurchatov Complex of Crystallography and Photonics of NRC “Kurchatov Institute”
Email: kuligin57@gmail.com
Russian Federation, Moscow
O. I. Vasin
Stemenko Krasnodar Higher Military School
Email: avilovanatoly@mail.ru
Russian Federation, Krasnodar
References
- Паншин Ю.А., Малкевич С.Г., Дунаевская Ц.С. Фторопласты. Л.: Химия, 1978. 232 с.
- Бузник В.М. Фторполимерные материалы. Томск: Изд-во НТЛ, 2017. 600 с.
- Clark E.S. // Polymer. 1999. V. 40. P. 4659.
- Фомин С.В. Индустрия фторопластов: реальность и перспективы / openauditorium.edunano.ru, вебинар от 18.09.2018.
- Bouznik V.M., Kirik S.D., Solovyov L.A., Tsvetnikov A.K. // Powder Diffraction. 2004. V. 19. № 3. P. 219.
- Bunn C.W., Howells E.R. // Nature. 1954. V. 174. P. 549.
- Хатипов С.А., Артамонов Н.А. // Рос. хим. журн. (Журн. Рос. хим. о-ва им. Д.И. Менделеева). 2008. Т. LII. № 3. С. 89.
- Острер С.Г. Фторполимеры в химической промышленности. Пермь, 2019. 398 с.
- Rigby H.A., Bunn C.W. // Nature. 1949. V. 164. P. 583.
- Prierce R.H.H. Jr., Clark E.S., Whitney J.F., Bryant W.M.D. Crystal Structure of Polytetrafluoroethylene. Abstract of Papers, 130th Meeting of the American Chemical Society. 1956. Sept. P. 9S.
- Clark E.S., Muus L.T. // Z. Kristallogr. 1962. B. 117. S. 119.
- Eby R.K., Clark E.S., Farmer B.L. et al. // Polymer. 1990. V. 31. № 12. P. 2227.
- Clark E.S. // J. Macromol. Sci. B. 2006. V. 45. № 2. P. 201.
- Clark E.S., Weeks J.J., Eby R.K. // ACS Symposium Ser. 1980. V. 141. P. 184.
- Лебедев Ю.А., Королев Ю.М., Поликарпов В.М. и др. // Кристаллография. 2010. Т. 55. № 4. С. 651.
- ГОСТ 8433-81 “Вещества вспомогательные ОП-7 и ОП-10”.
- Новикова В.В., Кулыгин А.К., Лепешов Г.Г., Авилов А.С. // Кристаллография. 2018. Т. 63. № 6. С. 876.
- Suwa T., Takeshita M., Machi S. // J. Appl. Polym. Sci. 1973. V. 17. № 11. P. 3253.
- Lehnert R.J., Hendra P.J., Everall N., Clayden N.J. // Polymer. 1997. V. 38. № 7. P. 1521.
- Кулыгин А.К., Кулыгин К.В., Авилов А.С. // Кристаллография. 2020. Т. 65. № 2. С. 325.
- LTR35 Многоканальный генератор-ЦАП сигналов и цифрового ввода-вывода. https://www.lcard.ru/products/ltr/ltr35
- PCIe-9834 4-CH 16-Bit 80 MS/s PCI Express Digitizer. https://www.adlinktech.com/Products/GPIB_Modular_Instruments/Digitizers_Oscilloscopes/PCIe-9834
- International Tables. Second Edition. 1994. Vol. C. Р. 257.
- Васин О.И., Гладышева Г.И., Дагман Э.Е. // Кристаллография. 1983. Т. 28. Вып. 3. С. 446.
- Васин О.И., Кулыгин А.К., Новикова В.В., Авилов А.С. // Кристаллография. 2019. Т. 64. № 5. С. 732.
- Васин О.И., Новикова В.В., Кулыгин А.К., Авилов А.С. // Поверхность. Рентген., синхротр. и нейтр. исслед. 2020. № 10. С. 105.
- Татаринова Л.И. Электронография аморфных веществ. М.: Наука, 1972. 104 с.
- O’Hagan D. // Chem. Soc. Rev. 2008. V. 37. № 2. P. 308.
Supplementary files
