| Radiation synthesis and characteristics of PTFE-g-PSSA ion exchange membrane applied in vanadium redox battery |
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| 作者姓名： | PENG Jinfen QIU Jinyi NI Jiangfeng ZHAI Maolin XU Peng PENG Jing ZHOU Henghui LI Jiuqiang WEI Genshuan |
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| 作者单位： | Beijing National Laboratory for Molecular Sciences, Department of Applied Chemistry, College of Chemistry ＆ Molecular Engineering, Peking University, Beijing 100871, China |
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| 基金项目： | Supported by The Scientific Research Foundation of State＇s Education Ministry for the Returned 0verseas Chinese Scholars. |
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| 摘 要： | Radiation-induced grafting of styrene onto polytetrafluoroethylene （PTFE） membranes was studied by a simultaneous irradiation technique. Grafting was carded out using γ-radiation from a ^60Co source at room temperature. Effects of absorbed dose, atmosphere, dose rate, and the concentration of initial monomer on the degree of grafting （DOG） were investigated and the most appropriate grafting condition was obtained. Subsequently, sulphonation of the grafted PTFE membrane （PTFE-g-PS） was carded out and a series of ion exchange membranes （PTFE-g-PSSA） was prepared. Further characterizations of FTIR, TGA, and SEM testified that grafting and sulphonation of the membranes were successfully processed; moreover, grafting of styrene not only occurred in the surface of PTFE membrane, but also in the micropores of the membrane. Ion exchange capacity （IEC） and conductivity were found increase with the grafting yield. The results suggest that at a low dose, such as 17 kGy, the ion exchange membrane （IEM） which will be suitable for vanadium redox battery （VRB） use can be obtained.
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| 关 键 词： | PTFE-g-PSSA离子交换膜 辐射合成 性质 钒氧化还原电池 |
Radiation synthesis and characteristics of PTFE-g-PSSA ion exchange membrane applied in vanadium redox battery |
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| PENG Jinfen QIU Jinyi NI Jiangfeng ZHAI Maolin XU Peng PENG Jing ZHOU Henghui LI Jiuqiang WEI Genshuan.Radiation synthesis and characteristics of PTFE-g-PSSA ion exchange membrane applied in vanadium redox battery[J].Nuclear Science and Techniques,2007,18(1):50-54. |
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| Authors: | PENG Jinfen QIU Jinyi NI Jiangfeng ZHAI Maolin XU Peng PENG Jing ZHOU Henghui LI Jiuqiang WEI Genshuan |
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| Affiliation: | 1. School of Biomedical Engineering, South-Central University for Nationalities, Wuhan 430074, China;2. National Key Laboratory of Science and Technology on Multi-spectral Information Processing, School of Automation, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | Radiation-induced grafting of styrene onto polytetrafiuoroethylene (PTFE) membranes was studied by a simultaneous irradiation technique. Grafting was carried out using γ-radiation from a 60Co source at room temperature.Effects of absorbed dose, atmosphere, dose rate, and the concentration of initial monomer on the degree of grafting (DOG) were investigated and the most appropriate grafting condition was obtained. Subsequently, sulphonation of the grafted PTFE membrane (PTFE-g-PS) was carried out and a series of ion exchange membranes (PTFE-g-PSSA) was prepared. Further characterizations of FTIR, TGA, and SEM testified that grafting and sulphonation of the membranes were successfully processed; moreover, grafting of styrene not only occurred in the surface of PTFE membrane, but also in the micropores of the membrane. Ion exchange capacity (IEC) and conductivity were found increase with the grafting yield. The results suggest that at a low dose, such as 17 kGy, the ion exchange membrane (IEM) which will be suitable for vanadium redox battery (VRB) use can be obtained. |
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| Keywords: | PTFE Radiation grafting Styrene Ion exchange membrane Vanadium redox battery |
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