在二元非离子型表面活性剂介入下,采用化学氧化界面聚合法,在0℃下制备聚吡咯薄膜。研究了Span80/Tween80复配体系在界面聚合中对聚吡咯成膜的影响,并利用红外光谱、扫描电子显微镜、热重分析、循环伏安法以及交流阻抗法对聚吡咯膜的性能进行表征。结果表明,在 H LB值较低时,聚吡咯微观形貌相互缠结交织在一起,形成孔洞型三维网状形貌；随着 H LB 值的增加,聚吡咯形貌变得更加均匀和蓬松,最终形成类“水藻”结构；当 HLB值为11．0,添加Span80浓度1．12 g/L、Tween80浓度1．88 g/L时,制备的聚吡咯膜比电容值达100．72 F/g,且循环寿命较佳。
With the assistance of binary non-ionic surfactant system,polypyrrole film was prepared through in-terfacial polymerization at 0 ℃.The influence of Span80/Tween80 complex system on obtained polypyrrole film was investigated.The performance of polypyrrole film was characterized by Fourier transform infrared spectros-copy,scanning electron microscopy,thermal gravimetric analysis,cycle voltammetry and electrochemical im-pedance spectroscopy.The results show that,the polypyrrole particles are entangled intertwined together to form a three-dimensional pore network structure at a low hydrophile-lipophile balance value (HLB value);with the increase of HLB value,polypyrrole particles become more uniform and fluffy,until a later class “algae”structure formed;an optimized film with a better cycle life and specific capacitance value of 100.72 F/g was yield at the HLB value of 11.0,and the concentration of Span80 and Tween80 were 1.12 and 1.88 g/L respec-tively.
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