Formation of silver nanoparticles under structured amino groups in pseudo-dendritic poly(allylamine) derivatives
Formation of silver nanoparticles under structured amino groups in pseudo-dendritic poly(allylamine) derivatives
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DOI：
10.1021/jp030116s
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发表时间：
2003-10-16
影响因子：
3.3
通讯作者：
Chen, WF
中科院分区：
文献类型：
--
作者：
Kuo, PL;Chen, WF
报道了由聚(烯丙胺) (PAA) 和聚乙烯亚胺化聚(烯丙胺) (PAA(EI)(n) (n = 2, 5.8)) 稳定的银纳米粒子的合成。颗粒结构对纳米颗粒尺寸、尺寸分布和团聚行为的影响是通过紫外-可见等离子体吸收带和透射电子显微镜 (TEM) 分析确定的。数据表明，PAA(EI)(n) 在防止银颗粒团聚方面表现出比 PAA 更好的稳定效果。观察到聚合物保护的纳米颗粒在不同银离子浓度下的不同现象，并根据结构依赖性稳定机制进行了解释。
The syntheses of silver nanoparticles stabilized by poly(allylamine) (PAA) and by polyethyleneiminated poly(allylamine) (PAA(EI)(n) (n = 2, 5.8)) are reported. The architectural effects in particle on the nanoparticle size, size distribution, and agglomeration behavior are determined from the UV-vis plasmon absorption band and transmission electron microscopic (TEM) analyses. The data show that PAA(EI)(n) display better stabilizing effects than PAA to prevent silver particles from agglomeration. Different phenomena of the polymer-protected nanoparticles at various silver ion concentrations are observed and are explained in terms of a mechanism of structure-dependent stabilization.