图案化聚电解质刷诱导纳米颗粒的有序组装及性能研究

项目名称： 图案化聚电解质刷诱导纳米颗粒的有序组装及性能研究

项目编号： No.51303195

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 一般工业技术

项目作者： 陈涛

作者单位： 中国科学院宁波材料技术与工程研究所

项目金额： 26万元

中文摘要： 纳米颗粒的有序自组装是获得先进功能材料的有效途径之一。本项目拟通过结合微、纳米蚀刻技术与可控聚合技术织构图案化刺激响应型聚电解质刷，以此为模板，诱导带有相反电荷的纳米颗粒在其表面的自组装，制备具有一定数目和形状的有序纳米颗粒自组装体。研究聚电解质刷尺寸、形状、化学组成、链长、接枝密度与纳米颗粒类型、尺寸、功能化以及自组装环境等对纳米颗粒自组装的影响规律；通过施加外部刺激，聚电解质刷可产生响应，导致其厚度的改变，从而用来操控所得有序纳米颗粒自组装体的运动；研究纳米颗粒自组装体的尺寸、数目、结构及其通过聚电解质刷的刺激响应所调节的与基底的距离等影响自组装体系光谱学性能的规律，进而探索聚电解质刷/纳米颗粒自组装体系在化学传感领域的应用。这些问题的解决，有助于了解纳米颗粒的有序组装机制、采用聚电解质刷操控纳米颗粒自组装体及其智能化，并开拓新的应用领域具有重要意义。

中文关键词： 聚电解质刷；诱导自组装；纳米颗粒；智能材料；刺激响应

英文摘要： The orderly self-assembly of nanoparticles (NPs) is one of the effective ways of access to advanced functional materials. This research project is proposed to fabricate patterned stimulus responsive polyelectrolyte brushes by the combination of lithographic technologies and controlled polymerization approaches,and to prepare order NPs self-assemble with a controlled particle cluster number and shape using the polyelectrolyte brushes as the template to direct the self-assembly of NPs with a opposite charge. The mechanism of the directed NPs self-assembly affected by polyelectrolyte brushes size, chemical composition, chain length, grafting density, and NPs type, size, functionalities with self-assembled environment will be investigated. Under the triger by external stimuli, polyelectrolyte brushes will be used to manipulate the motion of order NPs self-assemble due to their response with a change in thickness. The law of polyelectrolyte/NPs self-assemble system's spectroscopic properties affected by NPs cluster size, number, shape and the distance between NPs cluster with substrate adjusted by the stimulus responsive polyelectrolyte brushes will be studied. Their applications will be explored as functional materials and devices in the field of chemical sensing. It is significantly important to solve all these pr

英文关键词： Polyelectrolyte brushes；Directed Self-assembly；Nanoparticles；Intelligent Materials；Stimuli Response