以乙酰磺酸为磺化剂制备磺化度为３～１５ｍｏｌ％的磺化聚苯乙烯（ＳＰＳ）并中和成盐．在一定的温度和搅拌速率下，加水将ＳＰＳ乳化成水包油的稳定水基微乳液．用乳化过程中体系电导率和粘度的变化表征了乳化相反转过程．研究了溶剂的极性和离子含量对聚苯乙烯离聚体溶液可乳化性和乳化过程及乳液稳定性的影响． A sulfonated polystyrene (SPS) with a sulfonation degree of 3 ~ 15mol% was prepared by using acetylsulfonic acid as sulfonating agent and neutralized into salt. At a certain temperature and stirring rate, water was added to emulsify the SPS into a water-in-oil stable, water-based microemulsion. The emulsification phase inversion was characterized by the changes of the system conductivity and viscosity during emulsification. The effects of solvent polarity and ionic content on the emulsifiability and emulsification process and emulsion stability of polystyrene ionomer solution were investigated.