This article ismainly about the synthesis of nanopolyaniline inmicroemulsion (oil in water)
consisting four elements : dodecylbenzene sulfonic acid (DBSA) , aniline, n - butyl alcohol and water , in
which DBSA served as dopant , surfactant and the source of p roton, while n - butyl alcohol served as co -
surfactant. Meanwhile, dosage of surfactant and oxidantwere studied .