氨基磁性高分子微球的制备与影响因素

研究甲基丙烯酸甲酯-甲基丙烯酸缩水甘油酯-二苯乙烯磁性高分子微球的制备与影响因素．采用共沉淀法制备磁流体，并进行双层表面活性剂改性．以改性后的Fe3O4磁流体为核心，通过开环反应、共聚等方法制备含有氨基的磁性微球．讨论甲基丙烯酸甲酯、甲基丙烯酸缩水甘油酯和引发剂的用量及温度对磁性微球性能的影响．通过粒度分析仪测出微球粒径，并用x-射线（XRD）对Fe3O4及磁性微球进行表征，证明Fe3O4结构没有变化．红外光谱（FT-IR）测试表明微球结构表面含有氨基基团．

Preparation and Influence Factors of Amino Magnetic Polymer Microsphere

It reported preparation and characterization of P （MMA-GMA-DVB） magnetic polymer mi- crosphere. Magnetic fluid was prepared using coprecipitation, and double-surfactant modification was further implemented. With the modified Fe3O4 magnetic fluid as the core, through co-polymerization and ring-opening reactions, followed by chemical co-precipitation, magnetic polymer microsphere was prepared. The influence of methyl methacrylate ,glycidyl methacrylate and initiator as well as temperature on the magnetic properties of microspheres was discussed. Then particle size of microspheres was obtained using particle size analyzer. Fe3O4 and magnetic microspheres were made characterizations by means of X-ray （XRD）, and the results showed that the structure of Fe3O4 had no change. Infra-red spect rum test （PT-IR） showed the surface of microspheres containing amino groups.