SYNTHESIS AND NMR CHARACTERIZATION OF PRECURSORS OF EPOXY NETWORK AS POLYMER HOST FOR SOLID ELECTROLYTE*

BA Hengfei; PENG Xinsheng; CHEN Donglin; WANG Fosong

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SYNTHESIS AND NMR CHARACTERIZATION OF PRECURSORS OF EPOXY NETWORK AS POLYMER HOST FOR SOLID ELECTROLYTE*

Papers | Updated：2021-06-21

- SYNTHESIS AND NMR CHARACTERIZATION OF PRECURSORS OF EPOXY NETWORK AS POLYMER HOST FOR SOLID ELECTROLYTE*
- Vol. 10, Issue 1, Pages: 32-43(1992)
- 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 March 1992
- Accepted：
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[1]巴恒飞,彭新生,陈东霖,王佛松.SYNTHESIS AND NMR CHARACTERIZATION OF PRECURSORS OF EPOXY NETWORK AS POLYMER HOST FOR SOLID ELECTROLYTE[J].Chinese Journal of Polymer Science,1992,{4}(01):32-43.

BA Hengfei, PENG Xinsheng, CHEN Donglin, et al. SYNTHESIS AND NMR CHARACTERIZATION OF PRECURSORS OF EPOXY NETWORK AS POLYMER HOST FOR SOLID ELECTROLYTE*[J]. 1992, 10(1): 32-43.
[1]巴恒飞,彭新生,陈东霖,王佛松.SYNTHESIS AND NMR CHARACTERIZATION OF PRECURSORS OF EPOXY NETWORK AS POLYMER HOST FOR SOLID ELECTROLYTE[J].Chinese Journal of Polymer Science,1992,{4}(01):32-43. DOI：

BA Hengfei, PENG Xinsheng, CHEN Donglin, et al. SYNTHESIS AND NMR CHARACTERIZATION OF PRECURSORS OF EPOXY NETWORK AS POLYMER HOST FOR SOLID ELECTROLYTE*[J]. 1992, 10(1): 32-43. DOI：

摘要

正

To raise the room temperature ionic conductivity and improve the mechanical strength of a PEO-based polymer electrolyte

a noncrystalline two-component epoxy electrolyte system has been prepared. The diglycidyl ether of polyethylene glycols as precursors of the system were synthesized by a two-step process. The presumed structure of the product was characterized

H NMR and IR spectroscopy. It was found that a side-reaction occurred between the secondary hydroxyl group of PEG-chlorohydrin and epichlorohydrin in some degree

resulting in a by- product containing—CH

Cl side group. By selecting a characteristic signal

which is undistorted by the increase in the length of CH

—O segment

H NMR approach of determining the equivalent epoxy weight （EEW） was proposed. The method is valid to specimens even though the EEW is as high as 2

000. The examination of the specimens by DSC showed that epoxidation greatly depressed the crystallinity of the PEG’s

whereas the T

was raised.

Abstract

To raise the room temperature ionic conductivity and improve the mechanical strength of a PEO-based polymer electrolyte

H NMR and IR spectroscopy. It was found that a side-reaction occurred between the secondary hydroxyl group of PEG-chlorohydrin and epichlorohydrin in some degree

resulting in a by- product containing—CH

Cl side group. By selecting a characteristic signal

which is undistorted by the increase in the length of CH

—O segment

H NMR approach of determining the equivalent epoxy weight （EEW） was proposed. The method is valid to specimens even though the EEW is as high as 2

000. The examination of the specimens by DSC showed that epoxidation greatly depressed the crystallinity of the PEG’s

whereas the T

was raised.

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