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第 35 卷第 12 期 精 细 化 工 Vol.35, No.12
2018 年 12 月 FINE CHEMICALS Dec. 2018

有机电化学与工业
苯酐改性聚氨酯基固态电解质的制备与性能

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宋有信，鲍俊杰 ，许戈文，黄毅萍，程 芹
（安徽大学 化学化工学院，安徽省绿色高分子材料重点实验室，水基高分子材料安徽省工程技术研究中心，
安徽 合肥 230601）

摘要：以异佛尔酮二异氰酸酯（IPDI）、聚对苯二甲酸-3-甲基-1,5-戊二醇酯二醇（TPA-1000）、聚乙二醇
（PEG-2000）、一缩二乙二醇（DEG）为主要原料合成了系列热塑性聚氨酯弹性体，然后加入占体系质量分数
20%的锂盐，制备了不同的苯酐改性聚氨酯基固态聚合物电解质（SPE），研究了 TPA-1000 的加入量对 SPE 的
影响。利用 FTIR、DSC、TGA 等对 SPE 的性能进行表征。结果表明：随着 TPA-1000 质量分数的减少，固态聚
合物电解质的耐热性增加，玻璃化转变温度（T g ）减小。其离子电导率与温度的关系符合 Arrhenius 方程，在 80 ℃
时，电化学窗口达到 4.0 V 以上。以 m(TPA-1000)∶m(PEG-2000)=1∶2 制备的固态聚合物电解质（SPE4）综合
4
性能最佳，拉伸强度为 1.87 MPa，电导率为 2.15×10 S/cm、电化学窗口为 4.3 V。SPE4 组装的固态电池在 80 ℃、
0.2 C 放电比容量为 150 mA·h/g。
关键词：热塑性聚氨酯；固态聚合物电解质；聚乙二醇；离子电导率；有机电化学
中图分类号：TQ32 文献标识码：A 文章编号：1003-5214 (2018) 12-2091-07

Preparation and Properties of Terephthalic Anhydride
Modified Polyurethane Solid Polymer Electrolytes

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SONG You-xin, BAO Jun-jie , XU Ge-wen, HUANG Yi-ping, CHENG Qin
（Key Laboratory of Environment-friendly Polymer Materials of Anhui Province, Anhui Province Engineering Technology
Research Center of Water-Borne Polymer Materials, College of Chemistry and Chemical Engineering, Anhui University, Hefei
230601, Anhui, China）

Abstract: A series of thermoplastic polyurethane elastomers were prepared by using isophorone
diisocyanate (IPDI), poly-3-methyl-1,5-pentadiene terephthalate glycol (TPA-1000), polyethylene
glycol (PEG-2000) and diethylene glycol (DEG) as main raw materials. Then, mass fraction 20%
lithium salt (based on the mass of the system) was added to prepare different terephthalic anhydride
modified polyurethane solid polymer electrolytes (SPEs). The influence of adding amount of TPA-1000
on the properties of SPE was discussed. These SPEs were characterized by FTIR, DSC, TGA, and
so on. The results show that with the decrease of TPA-1000 content, the heat resistance of SPEs
increases and the glass transition temperature (T g) decreases. The relationship between ionic
conductivity and temperature is consistent with Arrhenius equation. The electrochemical windows
of SPEs reach 4.0 V at 80 ℃. Especially, the SPE4 prepared with a TPA-1000/PEG-2000 mass
fraction of 1∶2 has the best comprehensive performances. The mechanical strength of SPE4 is
4
1.87 MPa, the conductivity is 2.15×10 S/cm and the electrochemical window reaches 4.3 V. The
discharge capacity of solid state battery assembled with SPE4 is 150 mAh/g at 0.2 C under 80 ℃.
Key words: thermoplastic polyurethane; solid polymer electrolytes; polyethylene glycol; ionic
conductivity; electro-organic chemisitry
Foundation item: Natural Science Research Project of Universities in Anhui (KJ2017A031)

收稿日期：2018-03-21; 定用日期：2018-06-15; DOI: 10.13550/j.jxhg.20180193
基金项目：安徽高校自然科学研究项目（KJ2017A031）
作者简介：宋有信（1993—），男，硕士生。联系人：鲍俊杰（1983—），男，博士，讲师，E-mail：baoahu@qq.com。