纳米包埋结构改善稀土离子在高分子中的分散与加工性研究

项目名称： 纳米包埋结构改善稀土离子在高分子中的分散与加工性研究

项目编号： No.51473082

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 唐建国

作者单位： 青岛大学

项目金额： 84万元

中文摘要： 在分子或原子尺度将金属离子分散于高分子基体中，具有材料结构和性能的拓扑学意义，可以获得具有金属光电子性能的柔性高分子杂化材料。但因物性差异，金属离子不易分散于高分子中。本项目将发光稀土离子的有机共轭分子络合物（OLC）在高分子中的分散问题，转换为包埋OLC纳米粒子（NEO）在高分子中的分散加工问题，通过研究不同基质和不同结构的包埋OLC的纳米结构、研究赋予这些纳米粒子与高分子基体形成相容界面的物性，针对高效发光材料（纤维或薄膜）和高效光电器件（PLED或聚合物太阳能电池）的应用，获得NEO与基体高分子复合体的良好加工性、材料的高光量子收率以及稀土离子的高包埋浓度。其创新点就是将金属离子在高分子中的不易分散问题转换为纳米粒子在高分子中的加工问题，获得本质上热力学稳定的光功能材料。与无机光电功能材料不同，这种材料本质上是柔性的，可以在有材料柔性需求的国防、旅游、轻量装备等领域具有较大的应用。

中文关键词： 聚合物；纳米复合材料；聚合物加工；聚合物复合材料；微结构

英文摘要： The combination between metal ions and polymer matrix can obtain the materials that have both photo-/electro- properties belonging to metal ions and flexible property from polymers. It has the topological significance on material structures and properties. However, it is difficult to do because there are big differences on physical natures between polymers and metal ions. In this suggested research, we will establish a strategy with which we get the unique dispersive hybrid materials of lanthanide ions in polymer matrices through the processing of composites of nano-particles that include organic lanthanide complexes inside and polymer matrices, instead of direct incorporation of lanthanide ions into polymers. We will, firstly, synthesize series of typical nanostructures that embed OLCs (NEO), which are described in Figure 2, and try to increase the concentration of OLCs and improve the distribution of OLCs in NEO, to enhance the luminescent intensity of lanthanide ions. Secondly, we will modify the surface of nanoparticles through grafting oligomers consisting of short chain with polar coordinating groups. Via adjusting the components of the short chain, we can impart the available compatibility with polymer matrix. Thirdly, we research on the interface structures between NEOs and polymer matrices. With the understanding of the interface natures, we can judge the processibility of the hybrid materials. Fourthly, the luminescence of the hybrid materials is the most important. Thus, all the investigations will focus on the improvement of the emitting property. The creation in this project is, we think of, that we use the processing strategy of nanomaterials replaces the direct dispersion process of lanthanide ions in polymer matrices, both of which are repulse components in composite materials. Compared with inorganic luminescent materials, this hybrid material is intrinsic flexible, and it can be much available to defense, and light equipment in army.

英文关键词： polymer;nano composite materials;polymer processing;polymer composite materials;microstructue