| 초록 |
New polymer electrolyte membranes for fuel cell applications were prepared using polybenzimidazole(PBI) with benzimidazole pendant, which was synthesized from functionalized BI and 3,3-daminobenzene. Membranes were prepared by solution casting, and subsequently immersed in phosphoric acid in order to gain ionic conductivity. The membranes were characterized by FT-IR spectroscopy, XRD, TGA, and DMA. UV spectrum was used to confirm the differences between m-PBI and functionalized PBI. The proton conductivity was measured carried at nearly anhydrous conditions (1% R.H.) at 80℃ to 120℃. |
