Synthesis and characterization of sulfonated polyphenylene containing DCTPE for PEMFC potential application
| Autor: | Whangi Kim, Youngdon Lim, Sang Young Lee, Taehoon Hong, Hohyoun Jang, Seongyoung Choi, Dong-Hoon Lee, Soonho Lee |
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| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology Sulfuric acid Ether Tetraphenylethylene Sulfonic acid Condensed Matter Physics Dimethylacetamide Solvent chemistry.chemical_compound Fuel Technology Membrane chemistry Nafion Polymer chemistry Organic chemistry |
| Zdroj: | International Journal of Hydrogen Energy. 39:21531-21537 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2014.07.074 |
| Popis: | The synthesis of conjugated polyphenylenes containing tetraphenylethylene (PPTPE) moiety, their functionalization with sulfonic acid groups, and the measurement of apposite parameters for PEMs are described. The polymers were prepared by Ni-catalyzed carbon–carbon coupling reaction of dichlorotetraphenylethylene and 2,5-dichlorobenzophenone. These polymers have all carbon–carbon linkages without any ether linkage on polymer backbone, which were not attacked by nucleophiles (H2O, hydrogen peroxide, hydroxide anion and radical), and the twisted structure provided good solubility in aprotic polar solvent. The sulfonic acid groups were introduced by sulfonation reaction with concentrated sulfuric acid. All these membranes were prepared from dimethylacetamide (DMAc) polymer solution. The membranes were studied by ion exchange capacity (IEC), water uptake, proton conductivity, and single cell performance. The chemical degradation test of the prepared membrane was performed by Fenton reagent, and compared with normal sulfonated poly(ether sulfone)s & Nafion. |
| Databáze: | OpenAIRE |
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