聚甲基丙烯酸甲酯磁性微球的合成与表征  

SYNTHESIS AND CHARACTERIZATION OF POLYMETHYL METHACRYLATE MAGNETIC MICROSPHERES

作　　者：刘春丽[1] 李姗珊[1] 

机构地区：[1]河南工业职业技术学院化学工程系,河南南阳473009

出　　处：《南阳理工学院学报》2012年第4期127-128,共2页Journal of Nanyang Institute of Technology

摘　　要：用化学共沉淀法合成了磁性Fe3O4粒子,并用双层表面活性剂对其进行改性,得到了分散性很好的磁流体。在磁流体的存在下,利用乳液聚合方法制得Fe3O4/聚甲基丙烯酸甲酯磁性微球。分别用透射电镜和热失重方法对Fe3O4纳米粒子和磁性微球进行了表征,测得磁性微球的平均粒径和磁性微球中Fe3O4的百分含量。Fe3O4 magnetic particles were synthesized by the chemical co-precipitation and modified by bilayer surfactants. In the pres- ence of ferrofluid, Fe304/pelystyrene microspheres were obtained by emulsion polymerization. Using TEM characterize the size of mag- netic microspheres which was about 130 nm; further more TGA was used to character magnetic percentage.

关 键 词：FE3O4 磁性微球 乳液聚合 

分 类 号：TQ460.4[化学工程—制药化工]