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

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