Electrical Properties of Nanocomposites Based on Comb-Shaped Nematic Polymer and Silver Nanoparticles Научная публикация
Журнал |
The Journal of Physical Chemistry C
ISSN: 1932-7447 , E-ISSN: 1932-7455 |
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Вых. Данные | Год: 2007, Том: 111, Номер: 24, Страницы: 8451-8458 Страниц : 8 DOI: 10.1021/jp068688a | ||||||||||||
Ключевые слова | Copolymers; Dielectric spectroscopy; Glass transition; Nematic liquid crystals; Permittivity | ||||||||||||
Авторы |
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Организации |
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Реферат:
A nematic comb-shaped copolymer and its nanocomposites containing 0.063−0.54 in vol % of silver nanoparticles were studied by broadband dielectric spectroscopy. The frequency dependence of specific alternating current (ac) conductivity was used to estimate the temperature-frequency intervals of charge transfer by long and short distances, respectively. With increasing the concentration of nanoparticles, specific ac conductivity increases. The concentration dependence of dielectric permittivity suggests that distribution of nanoparticles is homogeneous, and conducting channels are not formed. With increasing the concentration of silver nanoparticles, the glass transition temperature of the nanocomposites, described in terms of the strength/fragility concept, increases, whereas the strength parameter D decreases (i.e., “fragility” increases).
Библиографическая ссылка:
Nikonorova N.A.
, Barmatov E.B.
, Pebalk D.A.
, Barmatova M.V.
, Domínguez-Espinosa G.
, Diaz-Calleja R.
, Pissis P.
Electrical Properties of Nanocomposites Based on Comb-Shaped Nematic Polymer and Silver Nanoparticles
The Journal of Physical Chemistry C. 2007. V.111. N24. P.8451-8458. DOI: 10.1021/jp068688a WOS Scopus РИНЦ
Electrical Properties of Nanocomposites Based on Comb-Shaped Nematic Polymer and Silver Nanoparticles
The Journal of Physical Chemistry C. 2007. V.111. N24. P.8451-8458. DOI: 10.1021/jp068688a WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 18 дек. 2006 г. |
Принята к публикации: | 23 апр. 2007 г. |
Опубликована online: | 31 мая 2007 г. |
Опубликована в печати: | 1 июн. 2007 г. |
Идентификаторы БД:
Web of science | WOS:000247215200010 |
Scopus | 2-s2.0-34547353316 |
РИНЦ | 13554998 |
Chemical Abstracts | 2007:583655 |
Chemical Abstracts (print) | 147:177865 |
OpenAlex | W2137668947 |