Journal
ACS MACRO LETTERS
Volume 4, Issue 4, Pages 453-457Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsmacrolett.5b00145
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- Rensselaer Polytechnic Institute
- Korea Institute of Industrial Technology from Ministry of Knowledge and Economy in S. Korea
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Three novel fluorene-based polymers with pendant alkyltrimethylammonium groups were synthesized and characterized. The polymers were soluble in dimethylformamide, and dimethyl sulfoxide at room temperature and methanol at 40 degrees C while remaining insoluble in water. The polymeric membranes were transparent and flexible and exhibited hydroxide ion conductivities above 100 mS/cm at 80 degrees C. The results of H-1 NMR and titration measurements demonstrated an excellent chemical stability of the synthesized polyfluorene, even after treatment in 1 M NaOH solution at 80 degrees C for 30 days. The results of this study suggest a feasible approach to the synthesis and practical applications of a new class of alkaline anion exchange membranes.
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