| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7747321 | Solid State Ionics | 2012 | 5 Pages |
Abstract
⺠Sulfonated copolyimide membranes were fabricated from solutions of the copoly(amic acid)s by a thermal imidization process. ⺠Sulfonated copolyimides show mainly three-step thermal degradation, with the degradation behavior being independent of the composition. ⺠WU and IEC values of the sulfonated copolyimides were 8.2-54.2% and 0.18-2.05 meq/g, respectively. ⺠Proton conductivity values of the membranes were lower than that of Nafion 117, although their IEC values were higher.
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Authors
Eun Young Jung, Boknam Chae, Se Jin Kwon, Hyun-Chul Kim, Seung Woo Lee,