Research Progress on the Control over Microstructures and Properties of Ferroelectric Poly(vinylidene fluoride-trifluoroethylene)

Yang-jiang WU; Xiao-hui LI; Qi-lin ZHOU; Chao FU; Fang WANG; Zhi-jun HU

doi:10.14028/j.cnki.1003-3726.2015.10.005

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Research Progress on the Control over Microstructures and Properties of Ferroelectric Poly(vinylidene fluoride-trifluoroethylene)

更新时间：2022-09-18

- Research Progress on the Control over Microstructures and Properties of Ferroelectric Poly(vinylidene fluoride-trifluoroethylene)
- Polymer Bulletin Vol. 28, Issue 10, Pages: 34-41(2015)
- 作者机构：
  
  苏州大学软凝聚态物理及交叉研究中心，苏州　215123
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2015.10.005
  CLC：
- Published：2015-10，
  
  Received：29 June 2015，
  
  Revised：02 July 2015，
扫描看全文
Yang-jiang WU, Xiao-hui LI, Qi-lin ZHOU, Chao FU, Fang WANG, Zhi-jun HU. Research Progress on the Control over Microstructures and Properties of Ferroelectric Poly(vinylidene fluoride-trifluoroethylene). [J]. Polymer Bulletin 28(10):34-41(2015)
DOI：

Yang-jiang WU, Xiao-hui LI, Qi-lin ZHOU, Chao FU, Fang WANG, Zhi-jun HU. Research Progress on the Control over Microstructures and Properties of Ferroelectric Poly(vinylidene fluoride-trifluoroethylene). [J]. Polymer Bulletin 28(10):34-41(2015) DOI： 10.14028/j.cnki.1003-3726.2015.10.005.

摘要

高分子的凝聚态结构具有多层次性

在微纳米尺度上有效地控制高分子的凝聚态结构

进而探索在微纳米尺度上凝聚态结构与性能的关系

将为高分子分子层次和宏观层次的结构与性能之间架起桥梁。本文综述了近年来我们课题组在铁电高分子聚偏氟乙烯-三氟乙烯共聚物方面的研究及其进展。发展了在纳米尺度上控制高分子片晶取向的新方法并应用到聚偏氟乙烯-三氟乙烯体系

构筑了取向高度有序的铁电高分子纳米结构阵列

分析了片晶取向与聚偏氟乙烯-三氟乙烯微观铁电和压电性能之间的关系

有效降低了以聚偏氟乙烯-三氟乙烯为主要材料的有机铁电非易失性存储器的读写电压。

Abstract

The hierarchical structure of polymers is notoriously difficult to control. Control over the hierarchical structures would

however

bridge the gap between structure

property of single chain and macroscopic structure

property of polymers. In this review

we summarized the recent research progress of our group in ferroelectric poly(vinylidene fluoride-trifluoroethylene). We have developed a simple nanoembossing protocol for simultaneously fabricating arrays of polymer nanostructures and controlling internal hierarchical structures. The application of the method to poly(vinylidene fluoride-trifluoroethylene)allows us to fabricate high-density arrays of ferroelectric nanostructures. The orientation of the polarization axis

about which the dipole moment rotates

is simultaneously aligned in plane over the whole patterned region. The improved crystal orientation translates to improved ferroelectric and piezoelectric properties such as lower coercive filed and higher pieozoelectric coefficient.

关键词

铁电高分子凝聚态结构空间受限取向非易失性存储器

Keywords

Ferroelectric polymerHierarchical structuresGeometrical confinementOrientationNon-volatile memory

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