PREPARATION AND CHARACTERIZATION OF Fe3O4/P(NaUA-St-BA) CORE-SHELL MAGNETIC NANO-COMPOSITE PARTICLES

ZHOU Chunhua; LIU Wei; ZHANG Shuxiang; LI Hui; CHU Guohong

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PREPARATION AND CHARACTERIZATION OF Fe3O4/P(NaUA-St-BA) CORE-SHELL MAGNETIC NANO-COMPOSITE PARTICLES

Research Article | 更新时间：2021-03-19

- PREPARATION AND CHARACTERIZATION OF Fe3O4/P(NaUA-St-BA) CORE-SHELL MAGNETIC NANO-COMPOSITE PARTICLES
- Acta Polymerica Sinica Issue 4, Pages: 606-610(2005)
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- Published：20 August 2005，
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ZHOU Chunhua, LIU Wei, ZHANG Shuxiang, LI Hui, CHU Guohong. PREPARATION AND CHARACTERIZATION OF Fe3O4/P(NaUA-St-BA) CORE-SHELL MAGNETIC NANO-COMPOSITE PARTICLES. [J]. Acta Polymerica Sinica (4):606-610(2005)
DOI：

ZHOU Chunhua, LIU Wei, ZHANG Shuxiang, LI Hui, CHU Guohong. PREPARATION AND CHARACTERIZATION OF Fe3O4/P(NaUA-St-BA) CORE-SHELL MAGNETIC NANO-COMPOSITE PARTICLES. [J]. Acta Polymerica Sinica (4):606-610(2005) DOI：

摘要

以表面包敷有反应型的表面活性剂NaUA(十一烯酸钠)的Fe3O4磁性胶体粒子为种子

运用无皂乳液聚合方法原位制备出Fe3O4P(NaUA-St-BA)核壳纳米磁性复合粒子.Fe3O4磁性胶体粒子的粒径为10nm左右.IR和TG结果分析表明

苯乙烯、丙烯酸酯和NaUA在Fe3O4粒子的表面发生了聚合反应

形成P(NaUA-St-BA);TEM和激光粒度分析仪测试结果显示

Fe3O4P(NaUA-St-BA)复合粒子具有核壳结构而且粒子分布均匀、平均粒径60nm;TG测试的结果表明

NaUA在Fe3O4粒子的包覆率为13.83%

P(NaUA-St-BA)共聚物的包覆率71.85%;振动样品磁强仪(VSM)测试的磁滞回线则表明由无皂乳液聚合得到的Fe3O4P(NaUA-St-BA)复合粒子具有超顺磁性

可避免磁性微球在磁场中的团聚.另外

合成的磁性胶乳可稳定存放数月.

Abstract

Fe3O4／P(NaUA-St-BA) core-shell magnetic composite nanoparticles were prepared by soapless polymerization of styrene and butyl acrylate in the presence of Fe3O4 magnetic colloidal particles coated with a reactive suffaetant NaUA and their diameter was about 10nm．The results of IR and TG analysis demonstrated that the desired polymer was bonded to the surface of Fe3O4 partieles．The morphology analysis by TEM confirmed that the composite particles had a core-shell structure and a relatively uniform diameter of about 60nm．The results of TG analysis indicated that the coating amount of NaUA and P(NaUA-St-BA) copolymer on Fe3O4 particles was 13.83％ and 71.85％．respectively The magnetic properties of the obtained composite particles were measured by VSM．and superparamagnetic properties was found Finally

the prepared magnetic composite particles latexes were stable for several months.

关键词

磁性Fe3O4胶体粒子无皂乳液聚合核-壳结构NaUA

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