聚苯胺复合导电薄膜的研制

Preparation of Conductive Polyaniline Composite Films

采用原位化学氧化聚合方法合成了聚苯胺（ＰＡｎ）／聚乙烯醇（ＰＶＡ）和聚苯胺（ＰＡｎ）／聚醋酸乙烯酯（ＰＶＡｃ）复合材料，通过浇铸成型的方法，制备了性能优良的可溶性自支撑导电复合薄膜．采用标准四电极法测得它们的电导率处于１０－４～１０－２Ｓ·ｃｍ－１范围．对聚合反应的各种影响因素进行试验研究，获得了较佳的聚合反应条件和成膜条件，并且对导电复合膜的理化性能进行了表征．

Conductive composite materials of polyaniline(PAn)/Polyvinyl alcohol(PVA) and polyaniline(PAn)/polyvinyl acetate(PVAc) were prepared by in situ polymerization of aniline in aqueous PVA and PVAc solutions respectively. The freestanding films of them were made through the evaporation of Nmethyl pyrrolidone. The electric conductivities of them were in the range of 10 -4 ～10 -2 S\5cm -1 measured by standard fourprobe method. The factors affecting the polymerization were studied, and a proper polymerization condition was obtained. Some properties of the films were measured.