Assembly of nanoparticles using surface-grafted orthogonal polymer gradients

被引：69

作者：

Bhat, RR ^{[1
]}

Tomlinson, MR ^{[1
]}

Genzer, J ^{[1
]}

机构：

[1] N Carolina State Univ, Dept Chem Engn, Raleigh, NC 27695 USA

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2004年 / 25卷 / 01期

关键词：

atom transfer radical polymerization (ATRP); gradient; nanocomposites; polymer brushes; surface-initiated polymerization;

D O I：

10.1002/marc.200300163

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We report on preparing poly(2-(dimethylamino)ethyl methacrylate) (PDMAEMA) gradient substrate, wherein molecular weight (MW) and grafting density (a) Of the surface-anchored PDMAEMA chains vary continuously in two orthogonal directions. Such a specimen is used to control the assembly of charged gold nanoparticles. Increasing MW and a of the grafted PDMAEMA cause an enhanced binding of the nanoparticles to PDMAEMA, thus leading to an orthogonal number density gradient of surface-bound gold nanoparticles.

引用

页码：270 / 274

页数：5

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