通过引导组装构筑结构可控的液晶纳米粒子聚合物

纳米粒子复合材料表现出独特的光、电、磁及机械性能，在功能材料、微电子、催化、生命科学、能源科学等领域具有广泛的应用。然而，该类材料的整体协同性能依赖于纳米粒子自身的取向及规整排列。因此，在本项目中，我们试图通过引导组装液晶纳米粒子构筑有序结构可控并精确定位的纳米粒子聚合物，拓展该类材料的功能，为构筑新型功能材料提供基础。在该体系中，采用 “自下而上”的方法，灵活并精确地调控液晶纳米粒子的化学结构，通过改变化学结构调节其分子形状和拓扑结构、调控其超分子有序结构。通过引导组装对该类液晶纳米粒子所形成的有序结构进行取向和定位，实现有序结构的精确排列。进而对有序结构精确排列的液晶纳米粒子进行原位聚合，制备出结构精确排列的液晶纳米粒子聚合物。最后，对该材料的结构与性能进行全面系统的分析，并反馈于分子设计、合成和引导组装，最终制备出具有应用前景的纳米复合功能材料。

The nanocomposite has been widely used in functional materials, microelectronics, catalysis, life science and other fields due to their unique and anisotropic optical, electronic, magnetic and mechanical properties. However, their overall synergy performance is significantly depended on the orientation and accurate arrangement of the ordered structure. In this proposal, we try to make use of directed self-assembly (DSA) to fabricate liquid-crystalline (LC) nanoparticle polymer with the oriented and accurate arrangement of the ordered structure, which is expected to expand the function of the material, and offer a versatile approach to fabricate a novel functional nanocomposite. In this system, we will reasonably take a “bottom-up” method to flexibly and precisely control their chemical structures, which is used to adjust the moleuclar shapes and topological structures, then control their the ordered structures. Further, we intend to use the directed self assembly (DSA) method to guide the domain orientation and register to realize the orientation and accurate arrangement of the ordered structure. Cross linking the resultant LC nanoparticles after DSA by in situ polymerization can produce LC nanoparticle polymer with the same ordered structure as the LC nanoparticles after DSA. At last, we will comprehensively analysis their relationship between the structure and function，then feedback the relative results to direct the molecular design and synthesis, which is helpful to achieve a novel potential practical nanocomposite.