PREPARATION AND CHARACTERIZATION OF MAGNETIC MICROSPHERIC POLYSTYREN

摘要：

This paper described that PS/Fe3 O4 composite nanoparticles were prepared from Fe3 O4 nanoparticles modified by oleic acid (OA) via mini-emulsion polymerization. And coating Fe3O4 with polystyrene (PS) polymer can prevent magnetic nanoparticles from the aggregation that usually comes from the increasing of ionic strength. Then the SiO2@ (PS/Fe3O4) composite nanoparticles were obtained via modified Stober process. The results showed that the particle diameter of the magnetic microspheric polystyrene was about 200—300 nm, styrene and Fe3O4 nanoparticles were also enwrapped with micro-spheric polystyrene.

关键词： Preparation Magnetic microspheres Mini-emulsion polymerization

作者: Li Guopeng Shen Bin Li Zhiyang He Nongyue

作者单位: School of Chemsitry and Chemical Engineering, Southeast University,Nanjing 211189, China State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China

会议类型: 国际会议

会议名称: The 7th International Forum on Post-Genome Technologies and China-Japan-Korea Summit on Natural Products(第七届国际后基因组技术论坛及中日韩天然产物论坛 IFPT)

会议地点: 重庆

会议语种:英文

页码: 119-120

在线出版日期: 2011-10-28（万方平台首次上网日期，不代表论文的发表时间）