聚合物媒介的无机纳米粒子可控组装

项目名称： 聚合物媒介的无机纳米粒子可控组装

项目编号： No.21304057

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 麦亦勇

作者单位： 上海交通大学

项目金额： 25万元

中文摘要： 无机纳米粒子，如金纳米粒子，磁性纳米粒子等的组装结构可以产生一些独特的物理性能。这些组装结构在生物标记、传感器、光电材料、催化等领域具有潜在应用。因此，通过不同的方法将无机纳米粒子有序地组织在一起并实现其独特的性能成为当前的研究热点之一。聚合物媒介的纳米粒子组装可实现纳米粒子不同维度的有序组装，从而获得形貌可控且具有不同物理性能的纳米粒子组装体，因此成为近年来纳米粒子可控组装的重要方法之一。本项目主要包含两项研究内容：（1）以嵌段共聚物组装体为模板实现金纳米棒不同维度的可控组装。通过改变自组装条件，制备不同维度和形貌的嵌段共聚物-金纳米棒杂化组装体，并研究组装体的光电等物理性能；（2）以聚合物为媒介，实现两种不同类型的纳米粒子，如金和磁性氧化铁纳米粒子不同维度的同步可控组装。通过改变自组装条件，制备不同维度和形貌的含两种纳米粒子的多功能杂化组装体，并研究组装体的光电、磁性等物理性能。

中文关键词： 聚合物自组装；无机纳米粒子；形貌控制；物理性能；潜在应用

英文摘要： Assembled structures of inorganic nanoparticles (NPs), such as gold NPs, magnetic NPs, etc. may produce unique physical properties. Such structures have potential applications in many fields, including bio-imaging, sensor, photoelectric materials, catalysis, among others.Therefore,exploration of new approaches for the ordered organization of inorganic NPs has been one of the currently active research topics. Polymer-mediate assembly of inorganic NPs has been one of the most important approaches in the recent years, since it allows the ordered organization of the NPs in various dimensions and the fabrication of the nanoparticle aggregates of controllable morphologies and different functions. The present project involves two studies. One is to achieve controlled assembly of gold nanorods in various dimensions using block copolymer aggregates as templates. We attempt to prepare block copolymer-gold nanorod hybrid aggregates of tunable morphologies by changing self-assembly conditions, and study some of the physical properties of the obtained assemblies including optoelectronic properties, among others. The other study is to realize polymer-mediated simultaneous controlled assembly, in various dimensions, of two different types of inorganic NPs, such as gold and magnetic Fe2O3 NPs. By adjusting self-assembly parame

英文关键词： polymer self-assembly；inorganic nanoparticles；morphological control；physical property；potential application