In this paper, SPPOLi was blended with PEG. The results of DSC analysis demonstrated a decrease of Tg for SPPOLi with adding of PEG, moreover, the higher the sulfonation contents, the more evident the decrease of Tg. WAXD showed that PEG could deteriorate the condense state structure for SPPOLi. The conductivity was improved by mixing PEG with SPPOLi, and the blends maintained the single-ion conducting property.

Key words: X-RAY DIFFRACTION ANALYSIS, DIFFERENTIAL SCANNING CALORIMETRY, ELECTRICAL CONDUCTIVITY, POLYGLYCOL