通过间甲基苯胺与苯胺在右旋樟脑磺酸水性介质中进行化学氧化共聚得到它们各自的均聚物及共聚物,在聚苯胺链段上引入甲基来改变产物的结构与电导率.用FT-IR、UV-Vis、XRD、SEM方法表征聚合物的分子链结构与微观形貌,用四探针法测定聚合物电导率.结果表明,所得聚合物为直径100nm左右的短纤维,聚苯胺分子链上甲基的引入削弱了苯环之间的π-π共轭,使FT-IR、UV-Vis光谱特征峰发生蓝移.在单体总浓度一定的条件下,可通过调节单体比例将聚合物的电导率控制在0.02～6.50 S/m的范围内.XRD谱图分析表明,甲基还具有诱导聚苯胺分子链取向的作用,使聚苯胺链聚集态规整性提高.
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