ATRP法制备磁性高分子微球及表征  

Preparation of magnetic polymer microspheres by ATRP

作　　者：郭卫强[1,2] 张现侠[1,2] 梁媛媛[1] 陈灿玉 焦艳华[1] 

机构地区：[1]杭州师范大学生物医药与健康中心,杭州311121 [2]杭州师范大学材料与化学化工学院,杭州310036

出　　处：《化工新型材料》2013年第8期78-79,共2页New Chemical Materials

基　　金：国家自然科学基金资助项目(21005025);浙江省公益技术应用研究资助项目(2010C33132)

摘　　要：通过化学共沉淀法制备了Fe3O4纳米磁性粒子作为内核,在其表面枝节一层引发剂,引发苯乙烯和丙烯酸的原子转移自由基聚合(ATRP)反应。通过SEM,TEM,IR,化学滴定法,表征,制备得到了粒径分布在40～50纳米,磁饱和强度为47.105emu/g,表面羧基含量在0.742mmol/g的磁性高分子复合微球。A preparation method of the magnetic microspheres coated with organic polymer was presented.Firstly,Fe3O4 nanoparticles were synthesized by co-precipitation from ferrous and ferric electrolyte solutions,then,the 4-（Chloromethyl）benzoic acid was combined on surface of the nanoparticles,and initiated the polymerization of styrene and acrylic acid by atom transfer radical polymerization（ATRP）.The results indicated that Fe3O4 nanoparticles coated with 0.7420mmol/g carboxyl functional groups,was successfully produced.The average diameter of nanoparticles was about 50nm,and the saturation magnetization（Ms）was about 47.105 emu·g-1.

关 键 词：FE3O4 ATRP 丙烯酸 苯乙烯 

分 类 号：O631.3[理学—高分子化学]