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In order to systematically study how the arrangement of cations on the side chain and length of alkyl spacers between cations impact the performance of multi-cation AEMs for alkaline fuel cells, a series of polyphenylene oxide (PPO)-based AEMs with different cationic side chains were synthesized. This work resulted in samples with two or three cations in a side chain pendant to the PPO backbone. More...
The transport properties of a series of sulfonated poly(phenylene)s were found to strongly correlate to the ion exchange capacity of the polymer. Sulfonated poly(phenylene) membranes have shown promise as proton exchange membranes for fuel cells. In general, these materials have minimal methanol and glucose crossover while maintaining high proton conductivity, which is necessary for efficient operation...
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