| 基于聚酰亚胺的非水质子导电材料的研究 |
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| 引用本文： | 浦鸿汀,唐黎明,乔磊,杨正龙.基于聚酰亚胺的非水质子导电材料的研究[J].同济大学学报(自然科学版),2006,34(2):229-233. |
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| 作者姓名： | 浦鸿汀 唐黎明 乔磊 杨正龙 |
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| 作者单位： | 同济大学,材料科学与工程学院功能高分子研究所,上海,200092 |
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| 基金项目： | 国家留学回国人员科研项目;中国科学院资助项目;上海市自然科学基金 |
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| 摘 要： | 制备了基于磷酸掺杂聚酰亚胺（PI）的非水质子导电材料，研究了其质子导电性能和导电机理，发现常温下PI与磷酸之间的作用以氢键为主．常温电导率不高，随着温度的升高，链段运动的加快也能促进质子的输送，两种结构PI的电导率对温度的依赖性更接近VTF方程或WLF方程．与磷酸复合后膜的热稳定性和氧化稳定性略有下降，但膜的综合性能仍有一定的实用性．
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| 关 键 词： | 质子导电材料 聚酰亚胺 磷酸 质子导电 甲醇渗透 |
| 文章编号： | 0253-374X（2006）02-0229-05 |
| 收稿时间： | 08 28 2004 12:00AM |
| 修稿时间： | 2004-08-28 |
Studies on Anhydrous Proton Conducting Materials Based on Polyimides |
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| PU Hongting,TANG Liming,QIAO Lei,YANG Zhenglong.Studies on Anhydrous Proton Conducting Materials Based on Polyimides[J].Journal of Tongji University(Natural Science),2006,34(2):229-233. |
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| Authors: | PU Hongting TANG Liming QIAO Lei YANG Zhenglong |
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| Institution: | Institute of Functional Polymer, School of Materials Science and Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | Anhydrous proton conducting materials based on phosphoric acid doped polyimide(PI) were prepared.Proton conductivity and mechanism of acid doped PI was studied.It was found that VTF or WLF equation was more suitable to fit the temperature dependence of DC conductivity of H_3PO_4 doped PI rather than Arrhenius equation.Hydrogen bond played an important role in the interaction between PI and phosphoric acid at room temperature.Proton transport was enhanced with increasing temperature due to the improvement of segmental motion.The thermal stability,oxidation stability,and methanol barrier ability decreased a little with the addition of phosphoric acid. |
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| Keywords: | proton conducting materials polyimide phosphoric acid proton conductivity methanol permeability |
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