A type of poly(vinylidene fluoride-trifluoroethylene) copolymer exhibiting ferroelectric relaxor behavior at high temperature (∼100 °C)

被引：17

作者：

Bao, Hui-Min ^{[1
]}

Jia, Cheng-Liang ^{[1
]}

Wang, Chang-Chun ^{[1
]}

Shen, Qun-Dong ^{[1
]}

Yang, Chang-Zheng ^{[1
]}

Zhang, Q. M. ^{[2
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, Dept Polymer Sci & Engn, Key Lab Mesoscop Chem MOE, Nanjing 210093, Peoples R China

[2] Penn State Univ, Mat Res Inst, Dept Elect Engn, University Pk, PA 16802 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 04期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2838309

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a class of poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] copolymers synthesized via reductive dechlorination from P(VDF-CTFE) [termed as the reduced P(VDF-TrFE) copolymer], which exhibit ferroelectric relaxor behavior at high temperature (similar to 100 degrees C). It was found that the reduced P(VDF-TrFE) 66/34 mol % copolymer has very high content of head-to-head and tail-to-tail defects, which may act as random defects, leading to the observed ferroelectric relaxor at high temperature. Furthermore, the reduced copolymer also exhibits a high melting point (similar to 200 degrees C), which also makes it attractive for high-temperature dielectric applications. (c) 2008 American Institute of Physics.

引用

页数：3

共 18 条

[1] Phase transitions and ferroelectric relaxor behavior in P(VDF-TrFE-CFE) terpolymers [J].