中国塑料 ›› 2008, Vol. 22 ›› Issue (02): 42-46 .DOI: 10.19491/j.issn.1001-9278.2008.02.009

• 材料与性能 • 上一篇    下一篇

分子印迹聚合物中种子微球的合成及应用研究

王利明,李晓燕,吴志明   

  1. 北京电子科技职业学院工程系,北京100029
  • 收稿日期:2007-10-26 修回日期:1900-01-01 出版日期:2008-02-26 发布日期:2008-02-26

Study on Synthesis and Application of Seeds in Molecularly imprinting Polymeric Microspheres

WANG Li-ming,LI Xiao-yan,WU Zhi-ming   

  1. Department of Engineering,Beijing Electronic Science and Technology Vocational College, Beijing 100029, China
  • Received:2007-10-26 Revised:1900-01-01 Online:2008-02-26 Published:2008-02-26
  • Contact: WANG Li-ming

摘要: 采用辛醇和乳化剂(OS)作为复合分散剂,用悬浮聚合法制备了4-氨基吡啶分子印迹聚合物微球。采用无皂乳液聚合法对分子印迹聚合物种子微球的制备与性能进行了研究。结果表明,辛醇与极少数乳化剂复合使用,提高了乳液的稳定性,改善了种子微球粒径大小及粒径分布。当辛醇用量为单体质量的3.0%、丙烯酸乙醋与苯乙烯质量比为1:0.229、反应温度为85℃、pH值为8.0时,能够制备出期盼的分子印迹聚合物微球。

关键词: 分子印迹聚合物微球, 合成, 粒径尺寸, 粒径分布, 无皂乳液聚合

Abstract: Molecularly imprinting polymer microspheres for 4-aminopyridine were prepared by means of an emulsifier-free seed emulsion polymerization from ethyl acrylate and styrene using octanol and a very small amount of OS as the dispersive reagent. When the octanol and OS were employed at certain ratios,a small size and uniform distribution of the microspheres were observed. The optimal condition was found, i. e.,the dosage of octanol was 3 . 0 wt,weight ratio of ethyl acrylate/styrene was 1:0 .229,PH was 8 .0,and the polymerization temperature was 85 ℃

Key words: molecularly imprinted polymeric microsphere, synthesis, particle bulk, size distribution, emulsifier-free emulsion polymerization