采用乳液聚合法以苯乙烯(St)为单体,十二烷基硫酸钠(SDS)为乳化剂,水/丙酮作为溶剂,芬顿试剂、在pH=3~4的弱酸性条件下作为引发剂,制备了粒径约为170nm的单分散聚苯乙烯(PS)微球。该工艺选用新型引发剂芬顿试剂,无需除氧,聚合时间短,操作简单,制备出的PS微球粒径可控,和传统工艺相比具有明显的优势。 The emulsion polymerization was carried out with styrene (St) as monomer, sodium dodecyl sulfate (SDS) as emulsifier and water / acetone as solvent. Fenton reagent was used as initiator in mild acidic condition with pH = 3-4 Agent, monodisperse polystyrene (PS) microspheres with a particle size of about 170 nm were prepared. The process uses a new initiator Fenton reagent, without deoxygenation, polymerization time is short, simple operation, prepared PS microspheres particle size controllable, and compared to the traditional process has obvious advantages.