Preparation and characterization of amphiphilic polymer microspheres

Amphiphilic microspheres ranging from 0.5μm～1.5μm were prepared by dispersion copolymerization of poly(ethylene oxide) macromonomer with styrene in the media of ethanol/water. Increasing the concentration of poly(ethylene oxide) macromonomer used in the polymerization, the resulting microspheres size decreased. Amphiphilic polymer microspheres were characterized by scanning electronic microscope, IR etc.||通过苯乙烯和聚氧乙烯大分子单体的共聚 ,合成了粒径在 0 .5μm～ 1 .5μm的两亲高分子微球。随着聚氧乙烯大分子单体浓度的增加 ,微球粒径减小。通过扫描电镜 ,IR等分析手段对微球进行了表征。