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用循环伏安法研究了聚吡咯膜在不同电解质溶液中的降解反应，通过紫外测定证实了降解反应的存在．在不同ｐＨ溶液中循环扫描时聚吡咯膜均存在不同程度的降解反应，且和掺杂的阴离子有一定的关系，在碱性溶液中的降解反应最为明显．
Cyclic voltammetry was used to study the degradation reaction of polypyrrole films in different electrolyte solutions. The existence of degradation reaction was confirmed by UV measurement. The polypyrrole films were degraded to some extent when they were circulated and scanned in different pH solutions, and had certain relationship with doped anions. The degradation reaction was the most obvious in alkaline solution.