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›› 2006, Vol. 6 ›› Issue (5): 845-848.

• 材料工程专栏 • 上一篇    下一篇

包覆多层聚电解质/树状大分子的聚合物微球表面CdS纳米粒的形成

郭飞,朱以华,杨晓玲   

  1. 华东理工大学材料学院
  • 出版日期:2006-10-20 发布日期:2006-10-20

Formation of CdS Nanoparticles on Polymer Spheres Coated with Polyelectrolyte/Dendrimer Multilayers

GUO Fei,ZHU Yi-hua,YANG Xiao-ling   

  1. East China University of Science and Technology
  • Online:2006-10-20 Published:2006-10-20

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摘要： 将聚酰胺-胺(PAMAM)树形大分子、聚对苯乙烯磺酸钠(PSS)和聚二烯丙基二甲基氯化铵(PDADMAC)在三聚氰胺甲醛(MF)微球上进行静电自组装，制得聚电解质壳层的核壳式微球. 通过反应沉积吸附方法生成具有稳定荧光性能的CdS/聚电解质核壳式复合微球. 用透射电镜表征复合微球形貌，用反射紫外和荧光表征了CdS/聚电解质核壳式复合微球的光学特性.

关键词: 聚酰胺-胺, 核壳式复合微球, 硫化镉, 荧光性能, 静电自组装

Abstract: Core-shell microspheres with polyelectrolyte multilayers were fabricated by electrostatic self-assembly of three kinds of polyelectrolyte, such as polyamidoamine (PAMAM), poly(diallyldimethylammonium chloride) (PDADMAC) and poly(4-styrenesulfonate) (PSS). Core-shell microspheres with CdS/polyelectrolyte multilayers were prepared by deposition and adsorption of CdS on the polyelectrolyte multilayers, and the CdS nanoparticles were formed in solution or polyelectrolyte layer, the formed core-shell microspheres had stable photoluminescence property. TEM was used to characterize the shape of core-shell microspheres and photonic properties of core-shell microspheres with CdS/polyelectrolyte multilayers were analyzed by UV-Vis reflectance and photoluminescence spectra.

Key words: polyamidoamine, core-shell microspheres, CdS particles, photoluminescence, electrostatic self-assembly