Fabrication of silica core-conductive polymer polypyrrole shell composite particles and polypyrrole capsule on monodispersed silica templates

被引：111

作者：

Hao, LY

Zhu, CL

Chen, CN

Kang, P

Hu, Y

Fan, WC

Chen, ZY ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Auhui, Peoples R China

[2] Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Auhui, Peoples R China

来源：

SYNTHETIC METALS | 2003年 / 139卷 / 02期

基金：

中国国家自然科学基金;

关键词：

core-shell spheres; capsule; polypyrrole; scanning electron microscopy; UV-Vis spectrum;

D O I：

10.1016/S0379-6779(03)00193-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Silica core-polypyrrole shell composite particles were fabricated by chemical polymerization of pyrrole monomer on the surface of the silica spheres. The steric agent poly(N-vinylpyrrolidone) (PVP) was used as anchor-molecule between core and polymer monomer during the polymerization. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images show that the polypyrrole (PPy) shell is uniformly coated over the silica surface. Furthermore, conductive polypyrrole hollow capsules were obtained after the removal of the core. In addition, the macromolecule PVP was retained in the capsules detected by UV-Vis spectra. The size of the core-shell particles and the thickness of the capsules are dependent on the size of silica template as well as the weight ratio of [silica spheres template]/[pyrrole monomer]. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：391 / 396

页数：6

共 48 条

[31] Sonochemical deposition of silver nanoparticles on silica spheres [J].