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Title: Relaxor ferroelectric behavior and structural evaluation in electron-irradiated P (vinylidene fluoride-trifluoroethylene) copolymer blends
Authors: Guo, SS
Liu, W
Zhu, BL
Liu, T
Zhao, XZ
Chan, HL 
Issue Date: 2005
Publisher: Springer
Source: Journal of materials science, 2005, v. 40, no. 5, p. 1177-1181 How to cite?
Journal: Journal of materials science 
Abstract: The effect of high-energy electron-irradiation on binary ferroelectric blends of poly(vinylidene fluoride-trifluoroethylene) 56/44 and 80/20 mol% has been studied in a broad dose ranging from 0 to 120 Mrad. It was found that the blends transformed from a normal ferroelectric to relaxor ferroelectric, obeying the Vogel-Fulcher law, after a proper electron dose by dielectric constants and loss measurements. X-ray diffraction shows significant changes in the ferroelectric-to-paraelectric phase transition behavior from all-trans to trans-gauche conformation after irradiation. In differential scanning calorimetry (DSC) thermograms, the Curie temperature and melting temperature decrease with the dose, indicating that there exists a strong lattice coupling between the two copolymers.
ISSN: 0022-2461
EISSN: 1573-4803
DOI: 10.1007/s10853-005-6935-z
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