胺基聚丙烯酰胺磁性微球的制备与表征  

The preparation and characterization of polyacrylamide magnetic beads

作　　者：王君 范美青 张玉 于微[1] 梁冠亮[1] 刘天孚 景晓燕 张密林[1] 

机构地区：[1]哈尔滨工程大学化工学院,黑龙江哈尔滨150001

出　　处：《化学工程师》2005年第6期3-4,共2页Chemical Engineer

基　　金：哈尔滨工程大学基础研究基金项目(HEUF04072)

摘　　要：利用改进的化学共沉淀法制备具有良好悬浮性和磁响应性的磁性流体。用聚乙二醇作改性剂,以磁流体为基质,以丙烯酰胺、烯丙胺等为单体制备聚丙烯酰胺磁性微球,利用xrd表征微球基质晶体结构,用JDM-13磁强计测定磁性基质的磁饱和强度,傅立叶变换红外光谱仪对微球表面功能团进行表征。实验结果表明:磁性微球的基质为Fe3O4晶体。Magnetic fluid with good suspendibility and magnetism was prepared by chemical coordination. At different temperature,with magnetic fluid whose property changed by polyethylene glycol,polyacrylamide magnetic beads can be produced. Using XRD tested crystal construction of magnetic microspheres; their specific saturation magnetization were measured by vibrating-sample magnetometer; functional groups by infrared spectrometer. The result suggested that the magnetic substrates of magnetic beads are Fe_3O_4 particle.

关 键 词：聚丙烯酰胺 磁性微球 制备与表征 傅立叶变换红外光谱仪 胺基 化学共沉淀法 xrd表征 磁性流体 磁响应性 聚乙二醇 晶体结构 饱和强度 基质 悬浮性 改性剂 磁流体 烯丙胺 磁强计 功能团 单体 

分 类 号：TQ326.4[化学工程—合成树脂塑料工业] TQ460.4