MOFs纳米粒子的制备及其对不相容共混物相结构的调控与稳定作用

项目名称： MOFs纳米粒子的制备及其对不相容共混物相结构的调控与稳定作用

项目编号： No.21504018

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 分析化学

项目作者： 邹志明

作者单位： 桂林理工大学

项目金额： 21万元

中文摘要： 鉴于金属有机骨架（MOFs）纳米粒子具有可控的尺寸与形状、独特的表面双亲性等特点，本项目率先提出利用MOFs纳米粒子来调控与稳定不相容高分子共混物的相结构。具体研究内容如下：拟采用常规溶液法制备尺寸与形状可控的MOFs纳米粒子；采用流变与多种显微技术相结合的手段，深入研究MOFs纳米粒子对不相容高分子共混物的增容作用，揭示粒子的形状、尺寸、润湿性、浓度与制样方式等因素对粒子的分布及增容效果的影响规律，阐明此类粒子的增容机理；系统研究并阐明稳态剪切下MOFs纳米粒子结构特性（如粒子形状、尺寸、润湿性）对共混物相结构的形成及演化的影响规律，建立相结构与动态流变性质的特征关联，阐明粒子诱导相结构的转变机理。本项目旨在探讨并发展一种新的、有效的调控高分子共混物相结构的方法，为高分子复合材料在加工过程中形态结构调控和性能优化提供科学依据和新的思路。

中文关键词： 聚合物共混物；相结构；结构调控；相容剂；金属-有机框架纳米粒子

英文摘要： Based on the metal-organic frameworks (MOFs) nanoparticles with the tunable shape and size and unique amphiphilic features, we first propose a new method in this project for regulating and stabilizing the phase structure of immiscible polymer blends by MOFs nanoparticles. Specific content includes: Synthesis of MOFs nanoparticles with controlled size and shape by conventional solution method; Investigate intensively the compatibilization effect of MOFs nanoparticles in immiscible polymer blends, and reveal the influence of particle size, shape, wettability and concentration and blending procedure and other factors on the localization of nanoparticles and the compatibilization in the blends, and clarify the compatibilization mechanisms of MOFs nanoparticles in polymer blends; Study systematically and elucidate the effect of structure characteristics (such as particle shape, size, wettability) of the MOFs nanoparticles on the phase structure formation and evolution in the blends under steady-state shear, and establish the feature association between the phase structure and dynamic rheological properties, and reveal the mechanisms of the transition of phase structure induced by nanoparticles. The project aims at developing a new method for regulating the phase structure of immiscible polymer blends, and providing reliable guidance and new ideas for tailoring the properties and structures of polymer materials.

英文关键词： polymer blends;phase structure;structure regulation;compatibilizers;MOFs nanoparticles