P(St-co-AA)与Fe3O4纳米粒自组装制备高分子磁微球.pdf

第23卷第1期 无机材料学报 V01．23．No，1 Journalof Materials Jan．，2008 2008年1月 Inorganic 文章编号：1000—324X(2008)01—0029—04 文德1，曾红梅1，王妍嫫1，赖琼钰1，吉晓洋2 (四川大学1．化学学院；2．分析测试中心，成都610064) 摘要：用微乳液聚合法制备了粒径均匀的聚苯乙烯一丙烯酸高分子微球P(St—co_AA)，与共沉淀法所制纳米 磁粉含量为15．8％．研究表明，pH值、搅拌等对复合磁性微球的形成有重要影响． 关键词：四氧化三铁；聚苯乙烯一丙烯酸微球；自组装；磁性微球 中图分类号：0614文献标识码：A Fe304 Self-assemblingMagneticMicrospheresbyP(St—co—AA)and WEN Del，ZENGHong—Meil，WANGYan-Yin91，LAI Qiong—Yul，JIXiao—Yan92 of and (1．CollegeChemistry,SichuanUniversity，Chengdu610064，China；2．AnalyticalCenter，Sichuan Testing University，Chengdu610064，China) Abstract：Uniform were microemulsion P(St—CO—AAlmicrospherespreparedby Fea witha contentwere electrostaticself- 04／P(St—co—AAlmicrosphereshighmagnetic preparedby with assemblyusing microspheresFe304nanoparticles P(St—CO—AAl synthesizedbyCO—precipitation． The of of effects onthe pH，stirringpreparation samples Fea04／P(St—CO—AA)wereinvestigated．All werecharacterizedtransmissionelectron electron by microscope(TEM)，scanning oftheobtained X—raydiffraction(XRD)，FTIRspectroscope．Themagneticproperty magneticpowder with wastestedVSM．Theresultsindicatethatthe sizesof Fe304singlephase by