Analysis of the Relaxor-Like Behavior in a Ferroelectric Copolymer P(VDF-TrFE)

被引：9

作者：

Solnyshkin, A. V. ^{[1
]}

Kislova, I. L. ^{[2
]}

机构：

[1] Tver State Univ, Dept Ferroelect & Piezoelect Phys, Tver 170002, Russia

[2] Tver State Tech Univ, Dept Automat Syst Control, Tver 170023, Russia

来源：

FERROELECTRICS | 2010年 / 398卷

关键词：

Ferroelectric polymer; dielectric dispersion; relaxor; POLY(VINYLIDENE FLUORIDE-TRIFLUOROETHYLENE) COPOLYMER; VINYLIDENE FLUORIDE; ELECTRON-IRRADIATION; FILMS; RESPONSES; POLYMERS;

D O I：

10.1080/00150193.2010.489836

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The frequency dependence of real (epsilon ') and imaginary (epsilon '') components of the complex dielectric permittivity (epsilon*) of poly( vinylidene fluoride-triflouroethylene) copolymer has been determined in the temperature range from -40 to 140 degrees C including the transition to glassy state at T-g approximate to-25 degrees C and ferroelectric-to-paraelectric (F-P) transition. During the cooling, the relaxor-like behavior is observed up to T-C for enough high frequencies. Analysis of the dielectric dispersion spectra was carried out using the Havriliak-Negami empirical model. The observed peculiarities of the dielectric response are discussed on the basis of the coexistence of both the short range and long range interactions.

引用

页码：77 / 84

页数：8

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