Control of the catalytic properties and directed assembly on surfaces of MADIX/RAFT polymer-coated gold nanoparticles by tuning polymeric shell charge

被引：35

作者：

Beija, Mariana ^{[2
]}

Palleau, Etienne ^{[1
]}

Sistach, Stephanie ^{[2
]}

Zhao, Xuange ^{[2
]}

Ressier, Laurence ^{[1
]}

Mingotaud, Christophe ^{[2
]}

Destarac, Mathias ^{[3
]}

Marty, Jean-Daniel ^{[2
]}

机构：

[1] Univ Toulouse, INSA UPS CNRS, LPCNO, F-31077 Toulouse 4, France

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

[3] Univ Toulouse, Lab HFA, CNRS, UMR 8241, F-31062 Toulouse, France

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2010年 / 20卷 / 42期

关键词：

TRANSITION-METAL NANOPARTICLES; STABILIZATION; ARCHITECTURES; AGGREGATION; DEPOSITION; WATER; SIZE;

D O I：

10.1039/c0jm01781g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper reports the use of MADIX/RAFT polymers to modulate the surface net charge of gold nanoparticles (AuNPs) with the aim of controlling their catalytic properties and their directed assembly on surfaces using AFM nanoxerography. A cationic polymer, poly[(3-acrylamidopropyl) trimethyl ammonium chloride], a pH-responsive polymer that is anionic under basic conditions, poly(acrylic acid), and a thermoresponsive neutral polymer, poly(N-isopropyl acrylamide) were synthesised and employed to coat preformed AuNPs. Depending on the polymer nature, different optical and surface charge properties were conferred to the nanohybrids. Their net surface charge was found to be a crucial parameter to modulate their catalytic properties and directed assembly on surfaces.

引用

页码：9433 / 9442

页数：10

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