Enhanced Proton Conduction in Polymer Electrolyte Membranes as Synthesized by Polymerization of Protic Ionic Liquid-Based Microemulsions

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• 作者：Feng Yan ; Shaomei Yu ; Xingwang Zhang ; Lihua Qiu ; Fuqiang Chu ; Jingbi You ; Jianmei Lu
• 刊名：Chemistry of Materials
• 出版年：2009
• 出版时间：April 28, 2009
• 年：2009
• 卷：21
• 期：8
• 页码：1480-1484
• 全文大小：283K
• 年卷期：v.21,no.8(April 28, 2009)
• ISSN：1520-5002

文摘

Proton-conducting membranes were prepared by polymerization of microemulsions consisting of surfactant-stabilized protic ionic liquid (PIL) nanodomains dispersed in a polymerizable oil, a mixture of styrene and acrylonitrile. The obtained PIL-based polymer composite membranes are transparent and flexible even though the resulting vinyl polymers are immiscible with PIL cores. This type of composite membranes have quite a good thermal stability, chemical stability, tunability, and good mechanical properties. Under nonhumidifying conditions, PIL-based membranes show a conductivity up to the order of 1 × 10⁻¹ S/cm at 160 °C, due to the well-connected PIL nanochannels preserved in the membrane. This type of polymer conducting membranes have potential application in high-temperature polymer electrolyte membrane fuel cells.