应用化学 ›› 1996, Vol. 0 ›› Issue (1): 6-9.

• 研究论文 • 上一篇    下一篇

Fe3O4/P(St-AA)核-壳复合微球的制备和表征

邱广明1, 高晓松1, 杨春雁1, 孙宗华2   

  1. 1. 内蒙古轻工科学研究所 呼和浩特 010051;
    2. 中国科学院成都有机化学研究所 成都
  • 收稿日期:1995-05-07 修回日期:1995-08-17 出版日期:1996-02-10 发布日期:1996-02-10
  • 基金资助:
    内蒙古自然科学基金

Preparation and Characterization of Fe3O4/P(St-AA) Core-Shell Composite Microspheres

Qiu Guangming1, Gao Xiaosong1, Yang Chunyan1, Sun Zonghua2   

  1. 1. Inner Mongolia Light Industry Research Institute, Huhehot 010051;
    2. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu
  • Received:1995-05-07 Revised:1995-08-17 Published:1996-02-10 Online:1996-02-10

摘要: 以磁性氧化铁胶体粒子为种子,运用分散聚合法,制备出具有磁响应性的Fe3O4/P(St-AA)核-壳复合微球。考察了复合微球的形态及结构,测定了复合微球的粒径和磁响应性,研究了分散介质、引发剂、聚合单体和种子粒子等因素对复合微球形成的影响。

关键词: Fe3O4, 核-壳微球, 制备磁性微球, 分散聚合, 苯乙烯

Abstract: Fe3O4/P(St-AA) core-shell composite microspheres,having 1~23μm diameter,0~0.1 mmol/g surface carboxyl groups and 0.5~9.0 mg/g magnetite,were prepared by dispersion polymerization of styrene-acrylic acid,with magnetic colloidal particles dispersing in ethanol/water or tetrahydrofuran/water.The size and magnetic response of composite microspheres are highly dependent on the amount of magnetic colloidal particles,solubility parameters of solvents,amount of monomer and initiator.

Key words: Fe3O4, core-shell microsphere, magnetic microsphere, dispersion polymerization, styrene