Hydrophobic–Hydrophilic Properties and Characterization of PIM-1 Films Treated by Elemental Fluorine in Liquid Perfluorodecalin
| Parent link: | Polymers.— .— Basel: MDPI Vol. 14, iss. 23.— 2022.— Article number 5152, 14 p. |
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| Korporacja: | |
| Kolejni autorzy: | , , , , , , , , , , |
| Streszczenie: | Title screen A direct fluorination technique was applied for the surface treatment of PIM-1 films in a liquid phase (perfluorodecalin). The fluorinated samples were analyzed by various instrumental techniques. ATR-IR spectroscopy showed that the fluorination predominantly takes place in methylene- and methyl-groups. Cyano-groups, aromatic hydrogens and the aromatic structure of the PIM-1 repeat unit were shown to be relatively stable at the fluorination conditions. XPS confirmed that the concentration of fluorine, as well as oxygen, in the near surface layer (~1 nm) increases with fluorination time. C1s and O1s surface spectra of the fluorinated PIM-1 samples indicated an appearance of newly-formed C-F and C-O functional groups. Scanning electron microscopy and X-ray energy-dispersive spectroscopy of the fluorinated PIM-1 samples showed an increase of the fluorine concentration at the surface (~0.1–1 µm) with the treatment duration. Analysis of the slices of the PIM-1 films demonstrated a decline of the fluorine content within several microns of the film depth. The decline increased with the fluorination time. A model of fluorine concentration dependence on the film depth and treatment duration was suggested. A change in the specific free surface energy as a result of PIM-1 fluorination was revealed. The fluorination time was shown to affect the surface energy (γSV), providing its shift from a low value (25 mJ·m−2 ), corresponding to tetrafluoroethylene, up to a relatively high value, corresponding to a hydrophilic surface Текстовый файл |
| Język: | angielski |
| Wydane: |
2022
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| Hasła przedmiotowe: | |
| Dostęp online: | https://doi.org/10.3390/polym14235152 |
| Format: | Elektroniczne Rozdział |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=671882 |
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| 200 | 1 | |a Hydrophobic–Hydrophilic Properties and Characterization of PIM-1 Films Treated by Elemental Fluorine in Liquid Perfluorodecalin |f N. A. Belov, A. Y. Alentiev, D. S. Pashkevich [et al.] | |
| 300 | |a Title screen | ||
| 320 | |a References: 36 tit. | ||
| 330 | |a A direct fluorination technique was applied for the surface treatment of PIM-1 films in a liquid phase (perfluorodecalin). The fluorinated samples were analyzed by various instrumental techniques. ATR-IR spectroscopy showed that the fluorination predominantly takes place in methylene- and methyl-groups. Cyano-groups, aromatic hydrogens and the aromatic structure of the PIM-1 repeat unit were shown to be relatively stable at the fluorination conditions. XPS confirmed that the concentration of fluorine, as well as oxygen, in the near surface layer (~1 nm) increases with fluorination time. C1s and O1s surface spectra of the fluorinated PIM-1 samples indicated an appearance of newly-formed C-F and C-O functional groups. Scanning electron microscopy and X-ray energy-dispersive spectroscopy of the fluorinated PIM-1 samples showed an increase of the fluorine concentration at the surface (~0.1–1 µm) with the treatment duration. Analysis of the slices of the PIM-1 films demonstrated a decline of the fluorine content within several microns of the film depth. The decline increased with the fluorination time. A model of fluorine concentration dependence on the film depth and treatment duration was suggested. A change in the specific free surface energy as a result of PIM-1 fluorination was revealed. The fluorination time was shown to affect the surface energy (γSV), providing its shift from a low value (25 mJ·m−2 ), corresponding to tetrafluoroethylene, up to a relatively high value, corresponding to a hydrophilic surface | ||
| 336 | |a Текстовый файл | ||
| 461 | 1 | |t Polymers |n MDPI |c Basel | |
| 463 | 1 | |t Vol. 14, iss. 23 |v Article number 5152, 14 p. |d 2022 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a direct surface liquid-phase fluorination | |
| 610 | 1 | |a PIM-1 | |
| 610 | 1 | |a SEM | |
| 610 | 1 | |a XEDS | |
| 610 | 1 | |a XPS | |
| 610 | 1 | |a ATR-IR | |
| 610 | 1 | |a contact angle; surface energy | |
| 701 | 1 | |a Belov |b N. A. |c chemist |c Head of Laboratory, Tomsk Polytechnic University, Candidate of Chemical Sciences |f 1981- |g Nikolay Alexandrovich |9 22355 | |
| 701 | 1 | |a Alentjev (Alentiev) |b A. Yu. |c chemist |c Chief Researcher, Doctor of Chemical Sciences |f 1963- |g Aleksandr Yurjevich |9 22357 | |
| 701 | 1 | |a Pashkevich |b D. S. |c Physicist |c Chief Researcher, Doctor of Technical Sciences |f 1962- |g Dmitry Stanislavovich |9 22359 | |
| 701 | 1 | |a Voroshilov |b F. A. |c Chemical Engineer |c Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences |f 1962- |g Fedor Anatolievich |9 16552 | |
| 701 | 1 | |a Dvilis |b E. S. |c Chemical Engineer |c senior researcher of Tomsk Polytechnic University, Professor, doctor of physical and mathematical Sciences |f 1969- |g Edgar Sergeevich |9 17959 | |
| 701 | 1 | |a Nikiforov |b R. Y. |g Roman | |
| 701 | 1 | |a Chirkov |b S. V. |g Sergey | |
| 701 | 1 | |a Syrtsova |b D. A. |g Daria | |
| 701 | 1 | |a Kostina |b Ju. V. |g Julia | |
| 701 | 1 | |a Asanov |b I. P. |g Igor | |
| 701 | 1 | |a Bogdanova |b Yu. G. |g Yulia | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |c (2009- ) |9 26305 |
| 801 | 2 | |a RU |b 63413507 |c 20240328 |g RCR | |
| 856 | 4 | 0 | |u https://doi.org/10.3390/polym14235152 |z https://doi.org/10.3390/polym14235152 |
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