Novel hydrophilic-hydrophobic multiblock copolyimides as proton exchange membranes: Enhancing the proton conductivity
文献类型：期刊论文
| 作者 | Li, Nanwen1,2; Liu, Jia1; Cui, Zhiming2; Zhang, Suobo1; Xing, Wei |
| 刊名 | POLYMER
 |
| 出版日期 | 2009-09-10 |
| 卷号 | 50期号:19页码:4505-4511 |
| 关键词 | Multiblock Copolymers Sulfonated Polyimides Proton Exchange Membranes |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2009.07.039 |
| 英文摘要 | A series of novel multiblock copolymers based on sulfonated copolyimides were developed and evaluated for use as proton exchange membranes (PEMs). In these multiblock copolyimides, the hydrophilic blocks were composed of the sulfonated dianhydride and the sulfonated diamine, with sulfonic acid groups on every aromatic ring (i.e., fully sulfonated). This molecular design was implemented to effectively enhance the proton conductivity. The properties of the multiblock copolyimides with varying IEC values or block lengths were investigated to obtain a better understanding of the relationship between molecular structure and properties of proton exchange membranes. The water uptake and proton conductivity were found to be highly dependent upon their structure. The block copolymers displayed significantly higher proton conductivities, especially at low relative humidity than the random copolymers with a similar IEC. The results indicated that the distribution of sulfonic acid and the length of the blocks play a key role on properties of proton exchange membranes. (C) 2009 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000272959200013 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67249]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Suobo |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Nanwen,Liu, Jia,Cui, Zhiming,et al. Novel hydrophilic-hydrophobic multiblock copolyimides as proton exchange membranes: Enhancing the proton conductivity[J]. POLYMER,2009,50(19):4505-4511. |
| APA | Li, Nanwen,Liu, Jia,Cui, Zhiming,Zhang, Suobo,&Xing, Wei.(2009).Novel hydrophilic-hydrophobic multiblock copolyimides as proton exchange membranes: Enhancing the proton conductivity.POLYMER,50(19),4505-4511. |
| MLA | Li, Nanwen,et al."Novel hydrophilic-hydrophobic multiblock copolyimides as proton exchange membranes: Enhancing the proton conductivity".POLYMER 50.19(2009):4505-4511. |
入库方式： OAI收割
来源：化学研究所
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