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Title: Enhanced ferroelectric and pyroelectric properties of poly(vinylidene fluoride) with addition of graphene oxides
Authors: Jiang, ZY
Zheng, GP 
Zhuo, H
Liu, YZ
Yang, JH
Issue Date: 2014
Publisher: AIP Publishing
Source: Journal of applied physics, 2014, v. 115, no. 20, p. 204101-1-204101-6 How to cite?
Journal: Journal of applied physics
Abstract: Poly(vinylidene fluoride)/graphene oxide (PVDF/GO) nanocomposites are synthesized and their structural, ferroelectric, and pyroelectric properties are investigated. The dielectric spectrum analysis and P-E loop tests indicate that the nanocomposites exhibit enhanced ferroelectric and pyroelectric properties compared with those of poly(vinylidene fluoride) samples. The isothermal crystallization kinetics of PVDF/GO nanocomposites quantitatively determined by differential scanning calorimetry demonstrates that GOs facilitate the crystallization of the PVDF. Dynamic mechanical analyses on the PVDF/GO reveal that the amorphous and crystalline phases of PVDF are modified by the addition of GO sheets. The GO-enhanced formation of crystalline β phase in PVDF could result from the strong interaction between the –C = O groups in GO and the –CF2 groups in PVDF, and the GO-induced ordering of the microstructures of amorphous and crystalline phases. The results suggest that PVDF/GO nanocomposites could be promising dielectric materials used in sensors, transducers, and actuators.
ISSN: 0021-8979 (print)
1089-7550 (electronic)
DOI: 10.1063/1.4878935
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