摘要
以油酸作为表面活性剂,采用化学共沉淀法制备了具有良好晶型、分散性好的纳米四氧化三铁。以甲基丙烯酸甲酯(MMA)作为反应单体,DVB为交联剂,使用水溶性引发剂KPS,采用单体聚合法制备磁性高分子微球Fe3O4/PMMA,该磁性高分子微球具有明显的核壳结构,粒子尺寸约为500 nm。
The magnetic nanoparticles with perfect crystal and good dispersion were synthesized by the chemical coprecipitation method in the presence of oleic acid （OA） as the surfactant. The magmetic polymer microspheres Fe3O4/PMMA were prepared by monomer polymerizatioon hy using methyl methacrylate as the monomer（MMA）, DVB as the cross-linking agent and KPS as the initiator with the existence of the magnetic fluid. The magnetic polymer microspheres had the obvious core-shell structured and the size of the microspheres was about 500 nm.
出处
《齐齐哈尔大学学报（自然科学版）》
2012年第2期53-56,共4页
Journal of Qiqihar University(Natural Science Edition)
关键词
磁性高分子微球
四氧化三铁
化学共沉淀
核壳结构
polymer microsphere
Fe3O4
chemical coprecipitation method
core-shell structure
