| 초록 |
Recently, as the most typical approach to overcome the limitations of Nafion IEMs, hydrocarbon-based alternative ionomers have attracted attention for VRFB. However, low oxidative stability is regarded as an obstacle to restrict commercial use of hydrocarbon-based ionomer membranes. Typically, hydrophilic blocks or hydrophilic moieties have been considered as the main reason on degradation of hydrocarbon-based ionomers, while the significance of hydrophobic moiety has been neglected in ionomers. Herein, four kind of poly(p-phenylene)s-based cation conducting polymeric membrane materials with different hydrophobic block structures were successfully synthesized by Ni(0)-catalyzed coupling polymerization for investigating the effect of the hydrophobic block structure on durability of membrane in VRFB. Furthermore, we propose chemically stable hydrocarbon-based ionomer materials for VRFB. |
