POLY 159 |
| We have demonstrated the synthesis of a novel sulfonated poly(phenylene) 3 via oxidative polymerization. The high molecular-weight PP 2 was easily prepared by oxidative polymerization. The degree of sulfonation could be easily controlled by changing the amount of trimethylsilylchlorosulfonic acid used in the reaction. Under dry conditions, the sulfonated PP is stable up to 180 oC without any decomposition. 3b membrane (IEC = 2.49 mequiv/g) showed comparable proton-conducting properties to Nafion 117 under the high humidity and the highest proton conductivity (2 × 10-1 cm-1 S/cm) at 80 oC and 95 % RH. Oxidative and hydrolytic stability of polymer 3 are under investigation. |
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General Papers: Functional Materials
6:00 PM-8:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster
Sci-Mix
Division of Polymer Chemistry |