基于小分子液滴为模板单分散聚合物/SiO2复合微球的可控制备及形成机理研究

项目名称： 基于小分子液滴为模板单分散聚合物/SiO2复合微球的可控制备及形成机理研究

项目编号： No.51203047

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 有机高分子材料学科

项目作者： 张玉红

作者单位： 湖北大学

项目金额： 25万元

中文摘要： 具有有机和无机材料特性的有机无机复合微球因其独特的性能在功能涂层等方面的应用越来越受到人们的青睐。如何可控制备聚合物/SiO2纳米复合微球是一个难点和挑战。本课题拟以苯乙烯和丙烯酸丁酯为可聚合单体，与1－乙烯基咪唑，甲基丙烯酰氧乙基三甲基氯化铵，4-乙烯基吡啶等功能辅助单体形成小分子液滴，然后以小分子液滴为模板可控制备不同粒径大小和SiO2吸附量的聚合物/SiO2纳米复合微球，探讨复合微球的形成机理，预期作高耐磨涂料而发挥作用。深入研究复合微球结构及其性质，探索实现单分散复合粒子大小、粒径分布和无机粒子吸附量控制的途径、参数及其条件。进一步考察小液滴模板与聚合物/SiO2纳米复合微球的模板机制；深入研究纳米复合微球的形成机理；探索复合微球粒径、粒径分布、单体种类、聚合物/无机粒子比例等因素在功能涂层中应用的影响规律；为进一步开拓具有高耐磨的有机无机复合纳米涂料提供基础。

中文关键词： 复合微球；可控制备；机理；纳米粒子；乳胶膜

英文摘要： In recent years, the synthesis of organic-inorganic nanocomposite microspheres is an topic of research both home and abroad. They combine the advantages of the inorganic material and the organic polymer these composite particles. Moreover, they possess the special properties of nanoparticles, which can improve the characterization functions of the materials and even offer them many other new functions. How to control preparation of the polymer/SiO2 nanocomposite microspheres is a difficulty and challenge. Small molecular droplet is intended to form using styrene and butyl acrylate as polymerizable monomers, 1-vinylimidazole (1-VID), 2-(methacryloyl)ethyltrimethylammonium chloride(MTC), 4-vinyl pyridine (4-VP) as auxiliary monomer. Based on these small molecular droplets, polymer/SiO2 nanocomposite microspheres with different particle size and SiO2 adsorption were controlled prepared. The formation mechanism of the composite microspheres will be discussed, these composite microspheres were expected to be high wear-resisting coating. The relation on the structure and properties of polymer/SiO2 nano composite microspheres were deep studied. The influence factors to prepare the monodisperse nanocomposite particles, such as controlled way, relative parameters, prepared condition will be explored. The template relatio

英文关键词： Composite microsphere；Controlled preparation；Mechanism；Nano particles；Latex film