高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (7): 1328.

• 研究简报 • 上一篇    下一篇

膜乳化-液中干燥法制备单分散高分子微球

包德才1,2, 张琼钢1, 刘袖洞1, 马小军1, 袁权1   

  1. 1. 中国科学院大连化学物理研究所, 大连 116023;
    2. 渤海大学化学与食品科学学院, 锦州 121000
  • 收稿日期:2003-06-23 出版日期:2004-07-24 发布日期:2004-07-24
  • 通讯作者: 马小军(1958年出生),男,研究员,博士生导师,主要从事生物医学材料工程学研究.E-mail:maxj@dicp.ac.cn E-mail:maxj@dicp.ac.cn
  • 基金资助:

    国家自然科学基金(批准号:29906011)资助

Preparation of Monodisperse PS Microspheres by Using Membrane Emulsification-drying Method in Liquid

BAO De-Cai1,2, ZHANG Qiong-Gang1, LIU Xiu-Dong1, MA Xiao-Jun1, YUAN Quan1   

  1. 1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
    2. School of Science of Chemistry and Food, Bohai University, Jinzhou 121000, China
  • Received:2003-06-23 Online:2004-07-24 Published:2004-07-24

摘要: 粒径可控的单分散高分子微球,在分析化学中可用作高效液相色谱填料[1,2];在化学工业中可用作催化剂载体;在生物领域中用于药物释放、癌症与肝炎等临床诊断、细胞标记与识别等[3].高分子微球的制备方法大致可分为两类,一是利用由单体出发的聚合反应或缩聚反应形成微球,二是高分子溶液经物理或物理化学手段处理后形成微球[4]

关键词: 膜乳化, 液中干燥, PS微球, 高分子微球, 单分散

Abstract: The membrane emulsification method was adopted to prepare monodisperse polystyrene(PS) microspheres. Stable uniform-sized emulsion droplets were successfully obtained by pressing PS solution through the Shirasu Porous Glass(SPG) membrane into water solution containing emulsifiers at appropriate applied pressures. Monodisperse PS microspheres with size in the range of 2-20 μm were prepared by drying in liquid. The size of PS microspheres was strongly dependent on the pore size of SPG membrane and the concentration of PS solution. The size of the PS microspheres increased with the increase in the pore size of SPG membrane and the concentration of PS.

Key words: Membrane emulsification, Drying in liquid, PS microsphere, Polymer microsphere, Monodisperse

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