期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 3, 期 16, 页码 8571-8580出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta01123j
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资金
- Technology Innovation Program (Industrial Strategic technology development program) - Ministry of Trade, Industry and Energy (MI, Korea)
Comb-shaped poly(arylene ether sulfone)s with pendant alkyl imidazolium groups were developed as anion-exchange membranes (AEMs). The imidazolium-functionalized polymers with relatively long alkyl chains formed self-aggregated structures with large ionic clusters and clear hydrophilic-hydrophobic phase separation. These comb-shaped membranes, with ion-exchange capacities of only 0.92-1.14 meq g(-1), showed very high hydroxide conductivities of over 0.03 S cm(-1) at 20 degrees C and 0.14 S cm(-1) at 80 degrees C. Furthermore, the self-aggregated structure resulting from these comb-shaped polymers exhibited excellent thermal, mechanical and dimensional stability, as well as superior chemical stability at high pH.
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