通过合理选择二氧化锰加入苯胺/过硫酸铵/酸水反应体系的时间,制备了各种含量的聚苯胺/二氧化锰复合材料(PANI/MnO2).用FTIR、UV-VIS、XRD和SEM对原位制备的PANI/MnO2进行了表征.XRD证明了原位合成的复合材料中聚苯胺组分为无定型,MnO2的晶型在反应前后未发生变化.SEM证明了反应中形成的聚苯胺倾向于在MnO2颗粒表面沉积,得到一种包裹型的PANI/MnO2复合材料.用苯胺的盐酸溶液在静止状态下处理复合材料,可得到一种树状珊瑚形貌的聚苯胺,这种形貌的聚苯胺不同于酸水体系中常见的颗粒状聚苯胺.
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