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High-quality ultrathin polymer films obtained by deposition from supercritical carbon dioxide as imaged by atomic force microscopyстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Gallyamov M.O., Vinokur R.A., Nikitin L.N., Said-Galiyev E.E., Khokhlov A.R., Yaminsky I.V., Schaumburg K.
- Журнал: Langmuir
- Том: 18
- Номер: 18
- Год издания: 2002
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 6928
- Последняя страница: 6934
- DOI: 10.1021/la025807e
- Аннотация: Promising new technique of polymer deposition from solutions in supercritical. carbon dioxide (sc CO2) has been applied to form ultrathin Teflon AF2400 copolymer films on substrates with different properties. Atomic force microscopy study of the coatings morphology has been performed for the first time and has revealed surprisingly high film uniformity, very low roughness, and good stability during the scanning procedure. Our findings have demonstrated the intriguing possibilities of the applied film-forming process allowing to deposit the thin-film coatings and also individual macromolecules in a controllable manner. This is because the variations of solution temperature and pressure influence significantly the dissolving power of sc CO2; therefore, the macromolecule precipitation depends strongly on the thermodynamic regime and can be easily controlled. The influence of substrate properties, exposure conditions, and deposition kinetics on the film morphology, thickness, and level of surface coverage has been shown.
- Добавил в систему: Галлямов Марат Олегович