由共沉淀法制备磁性FeaO4纳米颗粒,并用油酸钠对其表面进行改性,得到了平均直径为12.7nm的油基Fe3O4纳米颗粒.在该纳米颗粒存在的条件下,通过分散共聚制得了内部为Fe3O4,外层为二乙烯基苯(DVB)交联的聚丙烯酸-co-聚甲基丙烯酸甲酯(PAA-co-PMMA)磁性复合微球.研究了介质乙醇/水的比例、引发剂、分散剂、交联剂用量对形成复合微球的影响,得出了制备复合微球的优化实验条件,并对复合微球的结构、形态、尺寸及磁含量进行了考察.
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