MECHANICAL RELAXATION TIME OF COMBLIKE POLYMER ELECTROLYTE

QI Li; ZHANG Yongjie; LIN Yunqing; JING Xiabin

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MECHANICAL RELAXATION TIME OF COMBLIKE POLYMER ELECTROLYTE

Research Article | 更新时间：2021-03-19

- MECHANICAL RELAXATION TIME OF COMBLIKE POLYMER ELECTROLYTE
- Acta Polymerica Sinica Issue 2, Pages: 129-135(2000)
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- Published：20 April 2000，
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QI Li, ZHANG Yongjie, LIN Yunqing, JING Xiabin. MECHANICAL RELAXATION TIME OF COMBLIKE POLYMER ELECTROLYTE. [J]. Acta Polymerica Sinica (2):129-135(2000)
DOI：

QI Li, ZHANG Yongjie, LIN Yunqing, JING Xiabin. MECHANICAL RELAXATION TIME OF COMBLIKE POLYMER ELECTROLYTE. [J]. Acta Polymerica Sinica (2):129-135(2000) DOI：

摘要

以苯乙烯 /马来酸酐共聚物为骨架

聚乙二醇单甲醚为侧链合成了 3种不同侧链长度的梳状高分子聚合物

制成了锂盐络合物薄膜 .动态力学性能研究结果表明

本体系是主链刚性、侧链较柔软的梳状接枝聚合物 .应用时间温度等效原理

选择Tα 作为参考温度

建立了主曲线

得到了移动因子图和等自由体积图 .Williams、Landel和Ferry(WLF)经验方程的两个参数C1、C2 随着盐浓度增加而增大 .若T0 =50℃作为参考温度

平均松弛时间lgτc 与锂盐浓度C呈线性关系 .随着侧链分子量增加

主曲线向高频率移动 ;平均松弛时间lgτn 与侧链分子量的关系也是线性的 ;另外随着盐的不同

主曲线也会产生移动

表明盐种类对松弛时间产生影响 .

Abstract

Using poly(styrene-co-maleic anhydride) as the backbone and poly(ethylene glycol) methyl ether as side chains

three kinds of comblike polymers of different side chain length were synthesized.The Lisalt complexes and their films were prepared.The dynamic mechanical properties were investigated.It was found that the main chain was rigid and the side chain was flexible in this comblike polymer system. Based on the time temperature equivalence principle

a master curve was constructed.By selecting Tα as reference temperature

Arrhenius plotrs of shift factor and iso-free-volume polts were attained.The values of WLF parameters C1 and C2 increase with increasing salt concentration. By reference to T0=50℃

the relation between the average relaxation time lgτn and Mw of side chains is also linear. And the master curves are movable with the change of salts.It shows the effect of different kinds of salt on relaxation time.

关键词

聚合物固体电解质梳状聚合物WLF方程松弛时间动态力学性能

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