| MECHANICAL RELAXATION TIME OF A TWO-COMPONENT EPOXY NETWORKLiClO_4 POLYMER ELECTROLYTE |
| |
| 引用本文： | 彭新生,吴淑云,陈东霖. MECHANICAL RELAXATION TIME OF A TWO-COMPONENT EPOXY NETWORKLiClO_4 POLYMER ELECTROLYTE[J]. 高分子科学, 1993, 0(2): 133-143 |
| |
| 作者姓名： | 彭新生 吴淑云 陈东霖 |
| |
| 作者单位： | Laboratory of Polymer Physics，Changchun Institute of Applied Chemistry，Academia Sinica，Changchun 130022，Laboratory of Polymer Physics，Changchun Institute of Applied Chemistry，Academia Sinica，Changchun 130022，Laboratory of Polymer Physics，Changchun Institute of Applied Chemistry，Academia Sinica，Changchun 130022 |
| |
| 摘 要： | The mechanical relaxation time of a two-component epoxy network-LiClO_4 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_4 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.
|
| 收稿时间： | 1991-11-16 |
MECHANICAL RELAXATION TIME OF A TWO-COMPONENT EPOXY NETWORKLiClO4 POLYMER ELECTROLYTE* |
| |
| PENG Xinsheng,WU Shuyun,CHEN Donglin. MECHANICAL RELAXATION TIME OF A TWO-COMPONENT EPOXY NETWORKLiClO4 POLYMER ELECTROLYTE*[J]. Chinese Journal of Polymer Science, 1993, 0(2): 133-143 |
| |
| Authors: | PENG Xinsheng WU Shuyun CHEN Donglin |
| |
| Affiliation: | Laboratory of Polymer Physics; Changchun Institute of Applied Chemistry; Academia Sinica; Changchun |
| |
| Abstract: | The mechanical relaxation time of a two-component epoxy network-LiClO_4 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_4 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. |
| |
| Keywords: | Polymer solid electrolyte Mechanical relaxation time Segmental mobility Two-component epoxy network-LiClO_4 complex. |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《高分子科学》浏览原始摘要信息 |
|
点击此处可从《高分子科学》下载全文 |
