Polymer electrolytes based on copolymer of poly(ethylene glycol) dimethacrylate and imidazolium ionic liquid

被引：16
|
作者：
Tang, Zhenglin [1 ,2 ]
Qi, Li [1 ]
Gao, Guitian [2 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China
[2] Jilin Univ, Sch Mat Sci & Engn, Changchun 130025, Peoples R China
来源：
SOLID STATE IONICS | 2009年 / 180卷 / 2-3期
关键词：
Polymer electrolytes; Ionic liquid; Copolymer; Poly(ethylene oxide); IN-SITU POLYMERIZATION; VINYL MONOMERS; CONDUCTIVITY; DERIVATIVES; RELAXATION; COMPOSITE; BATTERIES; MOBILITY;
D O I：
10.1016/j.ssi.2008.12.009
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Polymer electrolytes based on the copolymer of N-vinylimidazolium tetrafluoroborate (VyImBF(4)) and poly (ethylene glycol) dimethacrylate (PEGDMA) have been prepared. Ethylene carbonate (EC) and LiClO4 are added to form gel polymer electrolytes. The chemical structure of the samples and the interactions between the various constituents are studied by FT-IR. TGA results show that these polymer electrolytes have acceptable thermal stability, are stable up to 155 degrees C. Measurements of conductivity are carried out as a function of temperature, VyImBF(4) content in poly(VyImBF(4)-co-PEGDMA), and the concentration of EC and LiClO4. The conductivity increases with PEGDMA and EC content. The highest conductivity is obtained with a value of 2.90 x 10(-6) S cm(-1) at room temperature for VP1/EC(25 wt.%)-LiClO4 system, corresponding to the LiClO4 concentration of 0.70 mol kg(-1) polymer. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：226 / 230
页数：5
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