高级检索
无机材料学报

无机材料学报 >

2008 , Vol. 23 >Issue 1: 29 - 32

DOI: https://doi.org/10.3724/SP.J.1077.2008.00029

研究论文

P(St-co-AA)与 Fe3O4纳米粒自组装制备高分子磁微球

  • 文德 ,
  • 曾红梅 ,
  • 王妍媖 ,
  • 赖琼钰 ,
  • 吉晓洋
展开
  • 四川大学 1. 化学学院; 2. 分析测试中心, 成都 610064

收稿日期: 2007-01-08

  修回日期: 2007-03-13

  网络出版日期: 2008-01-20

收起

Self-assembling Magnetic Microspheres by P(St-co-AA) and Fe3O4 Nanoparticles

  • WEN De ,
  • ZENG Hong-Mei ,
  • WANG Yan-Ying ,
  • LAI Qiong-Yu ,
  • JI Xiao-Yang
Expand
  • 1. College of Chemistry, Sichuan University, Chengdu 610064, China; 2. Analytical and Testing Center, Sichuan University, Chengdu 610064, China

Received date: 2007-01-08

  Revised date: 2007-03-13

  Online published: 2008-01-20

Fold

摘要

用微乳液聚合法制备了粒径均匀的聚苯乙烯-丙烯酸高分子微球P(St-co-AA),与共沉淀法所制纳米Fe3O4通过静电作用, 使两种微球自组装成高磁含量的磁性微球[Fe3O4/P(St-co-AA)]. 采用XRD、TEM、SEM、IR等对样品进行表征, 采用VSM对样品进行磁性能测试. 结果表明P(St-co-AA)平均粒径约为70nm, 表面含有羧基; 所得磁粉为Fe3O 4单相, 平均粒径约为10nm. 磁性能测试表明, 当外加磁场为1.5×106/pi(A/m)时, 磁化强度达到饱和, 饱和磁化强度为69A·m2·kg-1; 自组装所制高分子磁性微球为球形, 平均粒径约800nm, 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-丙烯酸微球; 自组装; 磁性微球

本文引用格式

文德 , 曾红梅 , 王妍媖 , 赖琼钰 , 吉晓洋 . P(St-co-AA)与 Fe3O4纳米粒自组装制备高分子磁微球[J]. 无机材料学报, 2008 , 23(1) : 29 -32 . DOI: 10.3724/SP.J.1077.2008.00029

Abstract

Uniform P(St-co-AA) microspheres were prepared by microemulsion polymerization. The Fe3O4/P(St-co-AA) microspheres with a high magnetic content were prepared by electrostatic self-assembly using P(St-co-AA) microspheres with Fe3O4 nanoparticles synthesized by co-precipitation. The effects of pH, stirring on the preparation of Fe3O4/P (St-co-AA) were investigated. All samples were characterized by transmission electron microscope (TEM), scanning electron microscope(SEM), X-ray diffraction(XRD), FTIR spectroscope. The magnetic property of the obtained magnetic powder with Fe3O4 single phase was tested by VSM. The results indicate that the average sizes of polymer microspheres P(St-co-AA) with carboxyl and the magnetic powders Fe3O4 are 70nm and 10nm, respectively. Magnetic property measurement shows that the saturated magnetization of the magnetic powders is 69A·m2·kg-1 when the applied field is up to 1.5×106/pi(A/m) at room temperature. The assembled Fe3O4/ P(St-co-AA) with an average size of 800nm is spherical and the content of magnetic powders is 15.8％.

Key words： Fe3O4; P(St-co-AA) microspheres; self-assembly; magnetic microsphere

参考文献

[1] Furusawa K, Anzai C. Colloid & Polymer Sci., 1987, 265 (10): 882--888.
[2] Ding Xiao-Bin, Li Wei, Zheng Zhao-Hui, et al. J. Appl. Polym. Sci., 2001, 79 (10): 1847--1851.
[3] Pich A, Bhattacharya S, Adler H-J P. Polymer, 2005, 46 (4): 1077--1086.
[4] Sun Hanwen, Yu Jiahui, Gong Peijun, et al. Journal of Magnetism and Magnetic Materials, 2005, 294 (3): 273--280.
[5] 刘雪奇, 曾红梅, 赖琼钰, 等. 无机化学学报, 2005, 21 (4): 490--494.
[6] Liu Z L, Yang X B, Yao K L, et al. Journal of Magnetism and Magnetic Materials, 2006, 302 (2): 529--535.
[7] Csetneki M, Kabai Faix, et al. Journal of Polymer Science:Part A:Polymer Chemistry, 2004, 42 (19): 4802--4808.
[8] Ma Zhi-Ya, Guan Yue-Ping, Liu Xian-Xiao, et al. Journal of Applied Polymer Science, 2005, 96 (6): 2174--2180.
[9] 黄忠兵, 唐芳琼. 无机化学学报, 2004, 20 (3): 363--366
[10] Frank Caruso, Andrei S Susha, Michael Giersig, et al.Adv. Mater., 1999, 11 (11): 950--953.
[11] Kim F, Kwan S, Akana J, et al. J. Am. Chem. Soc., 2001, 123 (18): 4360--4361.
[12] Hou Y L, Kondoh H. J. Phys. Chem. B, 2005, 109 (11): 4845--4852.
[13] Jian Jin, Tomokazu Iyoda, Chang Sheng Cao, et al. Angew.Chem. Int. Ed., 2001, 40 (11): 2135--2138.
[14] 答hspace*.12cm鸿, 朱以华(DA Hong, et al). 无机材料学报(Journal of Inorganic Materials), 2002, 17 (4): 867--871.
[15] Boal A K, Ilhan F, Derouchey J E, et al. Nature, 2000, 404 (6779): 746--748.
[16] 马光辉, 苏志国. 高分子微球材料, 第一版. 北京: 化学工业出版社, 2005. 190--200.
[17] 张立德, 牟季美. 纳米材料和纳米结构, 第一版. 北京: 科学出版社, 2001. 147--148.
[18] 吴谋成. 仪器分析, 第一版. 北京: 科学出版社, 2003. 70--90.
[19] 杨喜云, 龚竹青. 中南大学学报(自然科学版), 2005, 36 (2): 243--247.
Options
文章导航

/

〈 〉