| 摘要 |
PROBLEM TO BE SOLVED: To obtain a dopant agent for imparting high electroconductivity and hot water resistance to an electroconductive high molecular material and the electroconductive material excellent in heat resistance and moisture resistance, and provide a solid electrolytic capacitor using the same. SOLUTION: This electroconductive high molecular material contains at least one species of aromatic sulfonic acid derivatives expressed by general formula [1] (wherein at least one of R<1> to R<6> expresses a sulfonic acid group having a counter cation and the balance express H, a <=4C alkyl or a phenyl) and general formula [2] (wherein at least one of R<7> to R<10> expresses a sulfonic acid group having a counter cation and the balance express H, a <=4C alkyl or a phenyl).
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