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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (16): 1505-1509. 上一篇    下一篇

研究论文

微乳中纳米胶囊的复凝聚法制备

朱银燕1，张高勇*1 2，洪昕林1，董金凤1，张晓光1，曾晖1   

  1. (1武汉大学化学与分子科学学院 武汉 430072)
    (2中国日用化学工业研究院 太原 030001)
  • 投稿日期:2005-02-05 修回日期:2005-07-22 发布日期:2010-12-10
  • 通讯作者: 张高勇

Synthesis of Nanocapsules by ComplexCoacervation in Microemulsion

ZHU Yin-Yan1,ZHANG Gao-Yong*1,2,HONG Xin-Lin1,DONG Jin-Feng1,ZHANG Xiao-Guang1,ZENG Hui1   

  1. (1 Department of Chemistry, Wuhan University, Wuhan 430072)
    (2 China Research Institute of Daily Chemical Industry, Taiyuan 030001)
  • Received:2005-02-05 Revised:2005-07-22 Published:2010-12-10
  • Contact: ZHANG Gao-Yong

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1881

被引次数

59 | 8

在O/W型APG微乳液模板上, 以明胶和阿拉伯树胶作为包裹材料, 用复凝聚的方法制备纳米胶囊, 对影响纳米胶囊的合成条件进行了分析. 用粒度仪测定产物的粒径及其分布, 用透射电镜观察产物的形貌. 结果表明, 用复凝聚法在微乳中合成了粒度均匀、粒径30～100 nm的球性纳米胶囊. 考察了微乳液的组成、高分子的浓度和复凝聚的条件对纳米胶囊性质的影响. 纳米胶囊对氯氰菊酯的包裹率较高, 在60%以上. 本方法条件温和, 操作简单, 是一种新型的纳米胶囊合成技术.

关键词: 微乳液, 复凝聚, 纳米胶囊, 模板合成, 粒径

Nanocapsules were synthesized in O/W microemulsion by complex coacervation with natural polymer of arabic gum and gelatin. The synthesis conditions of polymeric nanocapsules were analyzed. Transmission electron microscopy (TEM) and photon correlation spectroscopy (PCS) show that sizes of nanocapsules are 30～100 nm with a narrow distribution. The effects of the composition of microemulsion, the concentration of polymer and the condition of complex coacervation on the characteristics of nanocapsules were investigated. The entrapment efficiency of cypermethrin in the nanocapsules manufactured was above 60%. This method is a novel approach to produce polymeric nanocapsules in mild condition.

Key words: microemulsion, complex coacervation, nanocapsule, templating synthesis, particle size