项目名称: 聚合物-金属微纳结构的表面增强拉曼散射效应及其应用研究
项目编号: No.51303066
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: 胡成龙
作者单位: 江汉大学
项目金额: 25万元
中文摘要: 本项目提出基于表面增强拉曼散射光谱方法(SERS)研究聚合物分子链在界面处的构象以及聚合物共混材料相界面处的化学组成、相态结构和扩散动力学。主要包括:1. 利用聚合物作为合成模板或载体,制备选择性强、灵敏度高和实用性强的间距可控的阵列金属微纳结构、环境响应性金属微纳结构和电导性金属微纳结构的SERS基体,建立聚合物构筑金属微纳结构的调控方法;2. SERS技术研究聚合物大分子链在界面处的取向和构象,揭示金属纳米尺寸下聚合物大分子和金属基底的成键相互作用的化学增强机理或物理机理,揭示分子体系的能量转移的本质;3. 通过对聚合物共混体系及其增容体系相界面处的化学组成、相态结构及分子链的扩散动力学的研究,揭示增容剂在相界面处的化学组成和分布规律,理论上指导聚合物共混体系的加工条件的确定及增容剂的选用和用量。
中文关键词: 表面增强拉曼散射;金属微纳结构;聚合物构象;共混相界面;
英文摘要: The Surface-enhanced Raman Scattering (SERS) based on Raman spectrophotometer is used to study the conformation of polymer chain at the polymer/metal interface, and chemical composition, morphology characteristics and diffusion kinetic in the phase interface of polymer blend. The main research contents are as follows: 1. The highly sensitive and available metal substrate such as spacing controlled metal micro-nano structure, stimuli-responsive metal micro-nano structure and conductivity metal micro-nano structure will be prepared by the polymer template for SERS. 2. The mechanism of chemical bonding between polymer molecules and nano-sized metal may be related with chemical enhancement mechanism or electromagnetic mechanism,which will be revealed by macromolecular chain orientation and conformation at the interface via SERS spectrum. It is expected to provide further information about energy transfer at the polymer/metal interface. 3. The chemical composition, phase structure and diffusion kinetics of polymer chain at the phase interface of polymer blend or its compatible system will be studied by the SERS and Raman mapping. It is expected to provide theoretical guidance for chemical composition and distribution about compatibilizer at the polymer/polymer interface.This project reveals the polymeric conformation
英文关键词: Surface-enhanced Raman Scattering;Micro-nano metal;polymer conformation;Phase interface;