Studies on magnetic polymer microspheres preparation and characterization

被引：0

作者：

Qiu, Guangming ^{[1
]}

Zhang, Xianming ^{[1
]}

Sun, Zonghua ^{[1
]}

机构：

[1] Chengdu Inst of Organic Chemistry, Academia Sinica, Chengdu, China

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 1993年 / 9卷 / 02期

关键词：

Copolymerization - Emulsions - Magnetic materials - Polymerization - Synthesis (chemical);

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The synthesis and characterization of magnetic polystyrene microspheres were reported. The magnetic polymer microspheres containing 0.067% Fe3O4 and having 0.06-0.7μm mean diameter were synthesized in the presence of magnetic fluid, by the improved emulsion polymerization of styrene. It has a spherical appearance and the internal construction of multi-phases. The magnetic polymer microspheres can be separated by magnetic field. The microspheres have narrow distribution of diameter, excellent mechanical stability and acid-resistivity. Experiments have indicated that, the less initiator and emulsifier, the larger microsphere diameter; the ethanol content in dispersion media has a great effect on formation of magnetic polystyrene microspheres, increasing ethanol content can make the microsphere diameter reach 1 mm.

引用

页码：38 / 43