摘要
研究制备了一种新型基于化学键合的聚乙烯咪唑/POSS纳米复合材料(POSS-b-PVI),并获得一种基于POSS-b-PVI的磷酸掺杂高温非水体系的质子导电膜。研究表明:与纯聚乙烯咪唑薄膜相比,该纳米复合质子导电材料的可见光透过率和质子导电率等有大幅度的提高,在200℃条件下该纳米复合质子导电材料的导电率可以达到7×10-4S/cm,光学透过率可达32%。
The newly developed polyvinylimidazole/POSS nanocomposites materials by covalently bond （POSS- b-PVI） were studied in this paper. The POSS-b-PVI membrane is doped with phosphoric acid and used as hightemperature or anhydrous proton exchange membrane. The resulting POSS-b-PVI nanocomposites films prepared by this method were found to exhibit excellent visible transmission and proton conductivity properties with improvements over what can be attained directly with pure poly（vinyl imidazole）. Phosphoric acid doped POSS-b-PVI membrane can exhibit an anhydrous conductivity of 7 × 10^-4 S/cm at 200℃ and visible transmission of 32%, which is can be used in high-temperature or anhydrous polymer electrolyte membrane fuel cells.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第9期1499-1502,1506,共5页
Journal of Functional Materials
基金
国家自然科学基金资助项目(50603018)
上海市自然科学基金资助项目(05ZR14126)
上海市曙光计划资助项目(05SG24)
关键词
POSS
聚乙烯咪唑
纳米复合材料
化学键合
质子导电性能
polyhedral oligomeric silsesquioxanes
poly（vinyl imidazole）
nanocomposite
covalently bond
proton conductivity
