DEVELOPMENT OF ANHYDROUS PROTON CONDUCTING POLYELECTROLYTE BLENDS BASED ON SULFONATED BISPHENOL A POLYETHERIMIDEAND 1H-1,2,4-TRIAZOLE

摘要

The sulfonated poly(arylene ethers) have received considerable interests in recent years because of their wide variety of applications in electrochemical cells. In this study sulfonated bisphenol A polyetherimides (SPEI) were synthesized by post sulfonation at room temperature. Different degrees of sulfonation were achieved by varying the mole ratio of the sulfonating agent to the PEI repeat units.1H-1,2,4 triazole(Taz) was incorporated in SPEI matrix in replacement of water due to their low volatility. The SPEI/Taz blends showed high proton conductivity in the anhydrous state. Furthermore, the dimensional stability of SPEI matrix was retained upon triazole addition.