制备了聚苯胺、聚甲基苯胺和溴化聚苯胺三种微粒,将其分别分散在氯化石腊中形成电流变体以考察苯环取代基的性质对聚苯胺电流变效应的影响。结果表明,聚甲基苯胺电流变效应最强、溴化聚苯胺最弱。掺杂程度对聚苯胺和聚甲基苯胺电流变效应影响的研究表明,分别存在一适宜的掺杂程度使其电流变效应较好。少量的聚丙烯酸锂与聚苯胺的复合在不明显减弱其电流变效应的同时可降低其电流密度。 Polyaniline, polymethylphenylamine and polyaniline bromide were prepared and dispersed in chlorinated paraffin to form current variants to investigate the influence of the properties of benzene ring substituents on the electrorheological effect of polyaniline. The results show that the poly-aniline has the strongest electrorheological effect and the polybrominated polyaniline is the weakest. The study on the effect of doping on the electrorheological effect of polyaniline and polymethyl aniline shows that there is an appropriate degree of doping to make the electrorheological effect better. A small amount of lithium polyacrylate composite with polyaniline does not significantly reduce its electrorheological effect while reducing its current density.