|
ИСТИНА |
Войти в систему Регистрация |
Интеллектуальная Система Тематического Исследования НАукометрических данных |
||
Curie point and a space charge relaxation in ferroelectric poly(vinylidene fluoride-trifluoroethylene) copolymers with different thermal historyстатья
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: 7 марта 2018 г.
- Авторы: Kochervinskii Valentin, Malyshkina Inna, Bedin Sergey, Korlyukov Alexander, Buzin Mikhail, Shakirzyanov Rafael
- Журнал: Journal of Applied Polymer Science
- Том: 135
- Номер: 18
- Год издания: 2018
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- Первая страница: 46186
- DOI: 10.1002/app.46186
- Аннотация: High-temperature processes of space charge relaxation in films of poly(vinylidene fluoride-trifluoroethylene) (70–30) have been investigated. The films were prepared by the crystallization from a solution in tetrahydrofuran at a room temperature. X-ray data analysis showed that initial films crystallize in metastable state: a paraelectric phase is formed at fast crystallization below the Curie temperature. An exothermic process was observed at heating, indicating a solid-state crystallization of metastable paraelectric regions. This process is controlled by melting of ordered regions formed at secondary crystall ization. These transformations of structure affect characteristics of the high-temperature space charge relaxation process. In particular, it was found that activation energy of extrinsic conductivity is reduced by several times in the region of ferroelectric-paraelectric phase transition. An additional relaxation process was registered above the Curie temperature, which is caused by the relaxation of charges in double electric layer formed on an interface between an electrode (Au) and fluorine-containing polymer.
- Добавил в систему: Малышкина Инна Александровна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|