A new hyperbranched star polyether electrolyte with high ionic conductivity
文献类型：期刊论文
| 作者 | Zheng, Tao1; Xing, Qian1; Ren, Shitong1; Zhang, Liaoyun1; Li, Huayi2 |
| 刊名 | IONICS
 |
| 出版日期 | 2015-04-01 |
| 卷号 | 21期号:4页码:917-925 |
| 关键词 | Hyperbranched star polymer Chemical synthesis Polymer electrolyte Ionic conductivity |
| 英文摘要 | Hyperbranched poly(glycidol) containing hydroxyl groups was firstly synthesized via anionic polymerization and then reacted with 2-bromoisobutyl bromide to form macroinitiator HPG-Br. Finally, a hyperbranched star polymer (HPG-PPEGMA) was successfully prepared by atom transfer radical polymerization (ATRP) of poly(ethylene glycol) methyl ether methacrylate using HPG-Br as macroinitiator. The structures and properties of the obtained polymers were characterized by H-1 NMR, attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). The ionic conductivity of the polymer electrolytes composed of HPG-PPEGMA and lithium bis(trifluoromethanesulfonimide) (LiTFSI) was investigated via electrochemical impedance spectroscopy. The results showed that the room temperature ionic conductivity of the prepared hyperbranched star polymer electrolytes had a higher ionic conductivity. When [EO]/[Li] was 20, the ionic conductivity of the hyperbranched star polymer electrolyte was up to 1 x 10(-4) Scm(-1) at 30 A degrees C. The onset decomposition temperature of the hyperbranched star polyether could reach 374 A degrees C, indicating that the hyperbranched star polymer had a good thermal stability. The XRD results showed that the structure of the hyperbranched star polymer was beneficial to improve the ionic conductivity due to possessing a low degree of crystallinity. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-11-03 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28449]  |
| 专题 | 化学研究所_工程塑料实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Tao,Xing, Qian,Ren, Shitong,et al. A new hyperbranched star polyether electrolyte with high ionic conductivity[J]. IONICS,2015,21(4):917-925. |
| APA | Zheng, Tao,Xing, Qian,Ren, Shitong,Zhang, Liaoyun,&Li, Huayi.(2015).A new hyperbranched star polyether electrolyte with high ionic conductivity.IONICS,21(4),917-925. |
| MLA | Zheng, Tao,et al."A new hyperbranched star polyether electrolyte with high ionic conductivity".IONICS 21.4(2015):917-925. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。