Polyphenylene sulfide(PPS) is a hydrocarbon polymer which has resistance to heat, chemicals and generality due to its low cost. To produce cationic exchange polymer, PPS was blended with sulfonation process and Polyvinylidenedifluoride(PVdF) was also applied for membrane-flexibility. After production of sulfonated-PPS (sPPS)/PVdf blend membrane, membrane property evaluation is concomitant. Water uptake and Dimensional change were highly enhanced by the incorporation of PVdF in blend membrane. Also stability of sPPS/PVdF blend membrane in VO2+ solution was highly improved. When the amount of PVdF is increasing, however, proton conductivity shows a slightly downward tendency. Consequently, the optimization of PVdF Content in sPPS/PVdf blend membrane is an important factor for the realization of VRFB system.

• 정지현(전남대학교, Department of Environment & Energy Engineering, Chonnam National University) | JiHyun Jung
• 김보림(전남대학교, Department of Environment & Energy Engineering, Chonnam National University) | Borim Kim
• 정호영(전남대학교, Department of Environment & Energy Engineering, Chonnam National University) | Ho-Young Jung