Water-soluble dendritic architectures with carbohydrate shells for the templation and stabilization of catalytically active metal nanoparticles

被引：68

作者：

Krämer, M

Pérignon, N

Haag, R

Marty, JD

Thomann, R

Lauth-de Viguerie, N

Mingotaud, C

机构：

[1] Univ Freiburg, Freiburger Mat Forschungszentrum, D-79104 Freiburg, Germany

[2] Univ Freiburg, Inst Makromol Chem, D-79104 Freiburg, Germany

[3] Univ Toulouse 3, CNRS, UMR 5623, IMRCP, F-31062 Toulouse, France

[4] Free Univ Berlin, Dept Chem, D-14195 Berlin, Germany

来源：

MACROMOLECULES | 2005年 / 38卷 / 20期

关键词：

D O I：

10.1021/ma0510791

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Hyperbranched poly(ethylenimine) (PEI) with amino groups or carbohydrate terminal groups have been used as support materials for metal nanoparticles (i.e., Cu, Ag, Au, and Pt) in water. Various parameters have been optimized, such as pH, concentration of the polymer in solution, and [metal ions]/ [polymer] ratio in order to obtain stable metal nanoparticles with a narrow size distribution. TEM measurements revealed that particles with a diameter as low as 1.4 nm were obtained. An increase of stability was obtained after functionalization of PEI with glycidol, gluconolactone, or lactobionic acid. In the case of Pt the catalytical activity of the corresponding nanoparticles was evidenced.

引用

页码：8308 / 8315

页数：8

共 45 条

[1] Hybrids of silver nanoparticles with amphiphilic hyperbranched macromolecules exhibiting antimicrobial properties [J].