Preparation and properties of ionic cross-linked sulfonated copolyimide membranes containing pyrimidine groups
文献类型：期刊论文
| 作者 | Jin, Rizhe1; Li, Yuhan1,2; Xing, Wei1; Qiu, Xuepeng1; Ji, Xiangling1; Gao, Lianxun1 |
| 刊名 | POLYMERS FOR ADVANCED TECHNOLOGIES
 |
| 出版日期 | 2012 |
| 卷号 | 23期号:1页码:31-37 |
| 关键词 | Ionic Cross-linking Sulfonated Copolyimide Pyrimidine Group Fuel Cell |
| ISSN号 | 1042-7147 |
| DOI | 10.1002/pat.1835 |
| 英文摘要 | A series of sulfonated copolyimides containing pyrimidine groups (SPIs) were synthesized by random copolymerization of 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA), 2-(4-aminophenyl)-5-aminopyrimidine (PAPRM), and 4,4'-diaminodiphenyl ether-2,2'-disulfonic acid (ODADS). Proton exchange treatment in 1.0?M sulfuric acid solution resulted in ionic cross-linking of the sulfonated copolymers due to the acid (sulfonic acid)-base (pyrimidine group) interactions and the membrane with more basic PAPRM moiety could absorb sulfuric acid to favor the proton transfer. The effects of the structure of the diamines on the properties of SPI membranes were evaluated by studying the membrane parameters including water uptake, proton conductivity, water stability, and methanol permeability. The basic pyrimidine groups introduced in the main chains could effectively resist membrane swelling due to the strong interchain interactions through basic pyrimidine groups and sulfonic acid groups. Compared with the corresponding uncross-linked copolyimides (NTDA/ODADS/ODA), the acidbase copolyimides displayed excellent water stability. The SPI membranes also exhibited improved mechanical properties and decreased methanol permeability. However, the cross-linked membranes showed lowered proton conductivities than the uncross-linked ones because a small part of the sulfonic acid groups had been consumed during the cross-linking process. Copyright (C) 2010 John Wiley & Sons, Ltd. |
| 语种 | 英语 |
| WOS记录号 | WOS:000298263500005 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/48161]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Gao, Lianxun |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Rizhe,Li, Yuhan,Xing, Wei,et al. Preparation and properties of ionic cross-linked sulfonated copolyimide membranes containing pyrimidine groups[J]. POLYMERS FOR ADVANCED TECHNOLOGIES,2012,23(1):31-37. |
| APA | Jin, Rizhe,Li, Yuhan,Xing, Wei,Qiu, Xuepeng,Ji, Xiangling,&Gao, Lianxun.(2012).Preparation and properties of ionic cross-linked sulfonated copolyimide membranes containing pyrimidine groups.POLYMERS FOR ADVANCED TECHNOLOGIES,23(1),31-37. |
| MLA | Jin, Rizhe,et al."Preparation and properties of ionic cross-linked sulfonated copolyimide membranes containing pyrimidine groups".POLYMERS FOR ADVANCED TECHNOLOGIES 23.1(2012):31-37. |
入库方式： OAI收割
来源：化学研究所
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