High permittivity induced by interaction between PI matrix and graphite oxide filler

Autor:	Ching-Ping Wong, Maobai Lai, Shuhui Yu, Rong Sun, Siwang Kou
Rok vydání:	2014
Předmět:	Permittivity Materials science Composite number General Physics and Astronomy Graphite oxide Matrix (chemical analysis) chemistry.chemical_compound chemistry Chemical bond Molecule Physical and Theoretical Chemistry Composite material Polyimide Conjugate
Zdroj:	Chemical Physics Letters. 612:280-284
ISSN:	0009-2614
DOI:	10.1016/j.cplett.2014.08.042
Popis:	Functionalized graphite oxide was introduced to polyimide and a colossal permittivity was obtained in the derived GO/PI composites. At 1 kHz, the permittivity of the composite with 3 wt% GO loading was up to 7179. In comparison, the permittivities of rGO/PI with 3 wt% rGO loading and GO/ER with 3 wt% GO loading were only 14.41 and 26.64, respectively. By analyzing the molecular structure and chemical bonding of GO/PI composites, we proposed that interaction occurred between the GO fillers carrying functional groups and the PI matrix with a conjugate system, which accounts for the high permittivity of GO/PI composites.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d9ab17023a28240c9df34f4169865352 https://doi.org/10.1016/j.cplett.2014.08.042 Zobrazit plný text záznamu Full Text from ScienceDirect