MECHANICAL RELAXATION TIME OF A TWO-COMPONENT EPOXY NETWORKLiClO4 POLYMER ELECTROLYTE*

PENG Xinsheng; WU Shuyun; CHEN Donglin

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MECHANICAL RELAXATION TIME OF A TWO-COMPONENT EPOXY NETWORKLiClO4 POLYMER ELECTROLYTE*

Papers | Updated：2021-06-21

- MECHANICAL RELAXATION TIME OF A TWO-COMPONENT EPOXY NETWORKLiClO4 POLYMER ELECTROLYTE*
- Vol. 11, Issue 2, Pages: 133-143(1993)
- Affiliations：
  
  1. Laboratory of Polymer Physics, Changchun Institute of Applied Chemistry, Academia Sinica,Changchun,130022
  2.   Changchun Institute of Applied Chemistry
  3.   Academia Sinica
  4.   Changchun 130022
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：20 June 1993
- Accepted：
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[1]彭新生,吴淑云,陈东霖.MECHANICAL RELAXATION TIME OF A TWO-COMPONENT EPOXY NETWORKLiClO_4 POLYMER ELECTROLYTE[J].Chinese Journal of Polymer Science,1993,{4}(02):133-143.

PENG Xinsheng, WU Shuyun, CHEN Donglin. MECHANICAL RELAXATION TIME OF A TWO-COMPONENT EPOXY NETWORKLiClO4 POLYMER ELECTROLYTE*[J]. 1993, 11(2): 133-143.
[1]彭新生,吴淑云,陈东霖.MECHANICAL RELAXATION TIME OF A TWO-COMPONENT EPOXY NETWORKLiClO_4 POLYMER ELECTROLYTE[J].Chinese Journal of Polymer Science,1993,{4}(02):133-143. DOI：

PENG Xinsheng, WU Shuyun, CHEN Donglin. MECHANICAL RELAXATION TIME OF A TWO-COMPONENT EPOXY NETWORKLiClO4 POLYMER ELECTROLYTE*[J]. 1993, 11(2): 133-143. DOI：

摘要

正

The mechanical relaxation time of a two-component epoxy network-LiClO

system as a polymer electrolyte was investigated. The network is composed of diglycidyl ether of polyethylene glycol （DGEPEG） and triglycidyl ether of glycerol （TGEG）

wherein LiCIO

was incorporated and acts as both the ionic carrier and the curing catalyst. As the relaxation time is informative to the segmental mobility

which is known to be essential for ionic conductivity

the average relaxation times of the specimens were determined through master curve construction. Experimental results showed that the salt concentration

molecular weight of PEG in DGEPEG and DGEPEG/TGEG ratio have profound effect on the relaxation time of the specimen. Among these factors

the former reinforces the network chains

leading to lengthen the relaxation time

whereas the latter two are in favour of the chain flexibility and show an opposite effect. The findings was rationalized in terms of the free volume concept.

Abstract

The mechanical relaxation time of a two-component epoxy network-LiClO

system as a polymer electrolyte was investigated. The network is composed of diglycidyl ether of polyethylene glycol （DGEPEG） and triglycidyl ether of glycerol （TGEG）

wherein LiCIO

was incorporated and acts as both the ionic carrier and the curing catalyst. As the relaxation time is informative to the segmental mobility

which is known to be essential for ionic conductivity

the average relaxation times of the specimens were determined through master curve construction. Experimental results showed that the salt concentration

molecular weight of PEG in DGEPEG and DGEPEG/TGEG ratio have profound effect on the relaxation time of the specimen. Among these factors

the former reinforces the network chains

leading to lengthen the relaxation time

whereas the latter two are in favour of the chain flexibility and show an opposite effect. The findings was rationalized in terms of the free volume concept.

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