Effect of Direct Fluorination on the Transport Properties and Swelling of Polymeric Materials: A Review; Membranes; Vol. 11, iss. 9
| Parent link: | Membranes Vol. 11, iss. 9.— 2021.— [713, 20 p.] |
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| সংস্থা লেখক: | |
| অন্যান্য লেখক: | , , , |
| সংক্ষিপ্ত: | Title screen Fluorine-containing polymers occupy a peculiar niche among conventional polymers due to the unique combination of physicochemical properties. Direct surface fluorination of the polymeric materials is one of the approaches for the introduction of fluorine into the chemical structure that allows one to implement advantages of fluorinated polymers in a thin layer. Current review considers the influence of the surface interaction of the polymeric materials and membranes with elemental fluorine on gas, vapor and liquid transport as well as swelling and related phenomena. The increase in direct fluorination duration and concentration of fluorine in the fluorination mixture is shown to result mostly in a reduction of all penetrants permeability to a different extent, whereas selectivity of the selected gas pairs (He-H2, H2-CH4, He-CH4, CO2-CH4, O2-N2, etc.) increases. Separation parameters for the treated polymeric films approach Robeson’s upper bounds or overcome them. The most promising results were obtained for highly permeable polymer, polytrimethylsilylpropyne (PTMSP). The surface fluorination of rubbers in printing equipment leads to an improved chemical resistance of the materials towards organic solvents, moisturizing solutions and reduce diffusion of plasticizers, photosensitizers and other components of the polymeric blends. The direct fluorination technique can be also considered one of the approaches of fabrication of fuel cell membranes from non-fluorinated polymeric precursors that improves their methanol permeability, proton conductivity and oxidative stability. |
| ভাষা: | ইংরেজি |
| প্রকাশিত: |
2021
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| বিষয়গুলি: | |
| অনলাইন ব্যবহার করুন: | https://doi.org/10.3390/membranes11090713 |
| বিন্যাস: | বৈদ্যুতিক গ্রন্থের অধ্যায় |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666322 |
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| 200 | 1 | |a Effect of Direct Fluorination on the Transport Properties and Swelling of Polymeric Materials: A Review |f N. A. Belov, D. S. Pashkevich, A. Yu. Alentjev (Alentiev), A. Tressaud | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 128 tit.] | ||
| 330 | |a Fluorine-containing polymers occupy a peculiar niche among conventional polymers due to the unique combination of physicochemical properties. Direct surface fluorination of the polymeric materials is one of the approaches for the introduction of fluorine into the chemical structure that allows one to implement advantages of fluorinated polymers in a thin layer. Current review considers the influence of the surface interaction of the polymeric materials and membranes with elemental fluorine on gas, vapor and liquid transport as well as swelling and related phenomena. The increase in direct fluorination duration and concentration of fluorine in the fluorination mixture is shown to result mostly in a reduction of all penetrants permeability to a different extent, whereas selectivity of the selected gas pairs (He-H2, H2-CH4, He-CH4, CO2-CH4, O2-N2, etc.) increases. Separation parameters for the treated polymeric films approach Robeson’s upper bounds or overcome them. The most promising results were obtained for highly permeable polymer, polytrimethylsilylpropyne (PTMSP). The surface fluorination of rubbers in printing equipment leads to an improved chemical resistance of the materials towards organic solvents, moisturizing solutions and reduce diffusion of plasticizers, photosensitizers and other components of the polymeric blends. The direct fluorination technique can be also considered one of the approaches of fabrication of fuel cell membranes from non-fluorinated polymeric precursors that improves their methanol permeability, proton conductivity and oxidative stability. | ||
| 461 | |t Membranes | ||
| 463 | |t Vol. 11, iss. 9 |v [713, 20 p.] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a direct surface fluorination | |
| 610 | 1 | |a elemental fluorine | |
| 610 | 1 | |a polymeric membranes | |
| 610 | 1 | |a gas separation | |
| 610 | 1 | |a liquid and vapor permeability | |
| 610 | 1 | |a printing equipment | |
| 610 | 1 | |a fuel cell membranes | |
| 610 | 1 | |a фтор | |
| 610 | 1 | |a фторирование | |
| 610 | 1 | |a полимерные мембраны | |
| 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 |3 (RuTPU)RU\TPU\pers\46719 | |
| 701 | 1 | |a Pashkevich |b D. S. |c Physicist |c Chief Researcher, Doctor of Technical Sciences |f 1962- |g Dmitry Stanislavovich |3 (RuTPU)RU\TPU\pers\46723 | |
| 701 | 1 | |a Alentjev (Alentiev) |b A. Yu. |c chemist |c Chief Researcher, Doctor of Chemical Sciences |f 1963- |g Aleksandr Yurjevich |3 (RuTPU)RU\TPU\pers\46721 | |
| 701 | 1 | |a Tressaud |b A. |g Alain | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инжиниринговый центр |b Научная лаборатория жидкофазного фторирования органических веществ |3 (RuTPU)RU\TPU\col\27698 |
| 801 | 2 | |a RU |b 63413507 |c 20211216 |g RCR | |
| 856 | 4 | |u https://doi.org/10.3390/membranes11090713 | |
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