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在Fe3O4磁流体存在下 ,通过苯乙烯与聚氧乙烯大分子单体 (MPEO)分散共聚制备两亲磁性高分子微球 .研究了聚氧乙烯大分子单体对微球粒径的影响 .用扫描电子显微镜 (SEM)、原子力显微镜 (AFM)表征了磁性微球的粒径、表面形貌以及表面粗糙度 ,用傅立叶红外光谱 (FTIR)鉴定了共聚物的结构 .随着聚合物中聚氧乙烯大分子单体含量的增加 ,微球表面的粗糙度增加 ,通过改变共聚物中MPEO的含量 ,可以得到含有 0 4～ 3 5mg g羟值的两亲磁性高分子微球
In the presence of Fe3O4 magnetic fluid, amphiphilic macromolecular microspheres were prepared via the dispersion copolymerization of styrene and polyoxyethylene macromonomer (MPEO) in the presence of Fe3O4 magnetic fluid.The effect of polyoxyethylene macromonomer on the microsphere size was studied by using The particle size, surface morphology and surface roughness of the magnetic microspheres were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The structure of the copolymer was characterized by Fourier transform infrared spectroscopy (FTIR) Ethylene macromonomer content increases, the microspheres surface roughness increases, by changing the MPEO copolymer content, can be obtained containing 0 4 ~ 3mg g hydroxyl value of the amphiphilic magnetic polymer microspheres