| 摘要 |
PROBLEM TO BE SOLVED: To provide a polymer electrolyte having not only good durable stability but also excellent ionic conductivity by introducing phosphonic acid groups expected to have high heat resistance into a polymer which skeleton itself has high heat resistance. SOLUTION: This polyazole compound containing phosphonic acid groups is characterized by having a conductivity of >=0.001 [S/cm] determined by measuring an alternating current impedance of 10,000 Hz at 80 deg.C and 95%RH, having a 3 wt.% loss temperature of >=400 deg.C based on the weight of a sample reaching 200 deg.C on the measurement of TGA, having an average mol.wt. of 1,000 to 1,000,000, and when plural repeating units are contained, they are mainly randomly and/or alternately binding to each other. |
