一种简便合成具有可调长度的脂肪族硫醇表面活性剂的方法，该表面活性剂可作为有机溶剂中金纳米颗粒的稳定剂。

A facile synthesis of aliphatic thiol surfactant with tunable length as a stabilizer of gold nanoparticles in organic solvents.

作者信息

Zhou Xiaoli, El Khoury Jouliana M, Qu Liangti, Dai Liming, Li Quan

机构信息

Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA.

出版信息

J Colloid Interface Sci. 2007 Apr 15;308(2):381-4. doi: 10.1016/j.jcis.2007.01.040. Epub 2007 Jan 23.

DOI:10.1016/j.jcis.2007.01.040

PMID:17291518

Abstract

Three new aliphatic thiol surfactants were synthesized by reacting alkyl bromide with hexamethyldisilathiane under a mild condition. This approach provides an easy access for the direct synthesis of various different length thiol surfactants which play a crucial role in tuning the properties of gold nanoparticles. Gold nanoparticles encapsulated with one of our synthetic thiols were prepared and well characterized by H NMR, UV-vis, FT-IR, and TEM. The hybrid nanoparticles are very stable in both organic solvents and the solid state.

摘要

通过在温和条件下使烷基溴与六甲基二硅硫烷反应，合成了三种新型脂肪族硫醇表面活性剂。这种方法为直接合成各种不同长度的硫醇表面活性剂提供了一条简便途径，这些硫醇表面活性剂在调节金纳米颗粒的性质方面起着关键作用。制备了用我们合成的一种硫醇包裹的金纳米颗粒，并通过核磁共振氢谱（¹H NMR）、紫外可见光谱（UV-vis）、傅里叶变换红外光谱（FT-IR）和透射电子显微镜（TEM）对其进行了充分表征。这种杂化纳米颗粒在有机溶剂和固态中都非常稳定。