以树形分子为模板制备金纳米簇及其表征  

PREPARATION OF GOLD NANOCLUSTER USING DENDRIMER AS TEMPLATE AND ITS CHARACTERIZATION

作　　者：潘碧峰[1] 高峰[1] 古宏晨[1] 

机构地区：[1]上海交通大学纳米科学与技术工程中心,上海200030

出　　处：《高分子材料科学与工程》2005年第6期224-227,共4页Polymer Materials Science & Engineering

基　　金：上海市科技发展基金(03ZR14057);国家自然科学基金(30471599)资助

摘　　要：利用酯端基聚酰胺-胺(PAM AM)树形分子为模板,以N,N-二甲基甲酰胺(DM F)为溶剂,用硼氢化钠还原氯化金制备了树形分子封装的金纳米簇复合物。UV-v is光谱和TEM表征研究表明,分子代数越大,制备的金纳米粒子直径越小,粒径分布越均匀,在DM F溶剂中越稳定。Gold nanoclusters were prepared by reduction of HAuCl4 with NaBH4 in the presence of poly（amidoamine） dendrimers with surface methyl ester groups in N,N-dimethylformamide. Gold nanoclusters with smaller particle size, better diameter distribution and better dispersive stability were obtained by using higher generation dendrimer as template from UV-vis spectra measurement and TEM characterization. In addition, we discussed how the dendrimers acted as templates for the prep drimer nanocomposites lower generation; and tion dendrimers. aration of gold nanoparticles. There are two possibilities ： one is that the gold nanoparticle is surrounded by several the other is that gold nanoparticles are encapsulated in the for gold-dendendrimers for higher generation dendrimers.

关 键 词：PAMAM树形分子 金纳米簇 模板 

分 类 号：TB383[一般工业技术—材料科学与工程]