中文摘要：

以苯乙烯和丙烯酸作为聚合单体,以对氯甲基苯甲酸为引发剂进行原子转移自由基聚合（ATRP）反应,详细讨论了影响聚合反应的因素如反应时间、反应温度、投料配比等,找到了较优的实验条件.制备得到的磁性高分子复合微球,其表面羧基含量最高可达0.50 mmol/g,SEM照片显示磁微球的平均粒径为50 nm左右,粒径分布比较均匀.

英文摘要：

Using styrene （St） and acrylic acid（AA） as monomers, the magnetic polymer microspheres P（St-AA）/Fes 04 were synthesized by atom transfer radical polymerization（ATRP） with an initiator 4 chloromethyl benzoic acid. The paper discussed some influencing factors, such as reaction temperature, reaction time and molar ratio of reactants in detail, and found optimum experiment conditions. The surface carboxyl content of the prepared microspheres is up to 0.50 mmol/g, and the average particle size is about 50 nm, the distribution of which is relatively uniform.