利用分批滴加单体式微乳液聚合法制备了高含量聚苯胺水性纳米微乳液及纳米粒子.所得微乳液中聚苯胺含量达1.0%(质量分数),是其他微乳液聚合的1.25～27.8倍.研究了合成工艺条件对聚苯胺纳米粒子的粒径、产率、相对分子质量、电导率等的影响.发现前后两次滴加的单体比例、酸浓度以及酸种类是主要影响因素.当滴加的单体比例为80:20、盐酸浓度为0.1 mol/L时,在20℃下反应24 h,可获得稳定的聚苯胺微乳液,放置至少半年不分层.该纳米聚苯胺的粒径为10～40nm,电导率为0.12 S/cm.
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