含苯并二呋喃甲壳型液晶聚合物的相结构与光电性能研究

Side-chain polymers with optoelectronic pendant groups have a wide range of applications in flexible display, illumination and sensor. However, the carrier mobility of side-chain polymers and the light outcoupling efficiency of polymer electroluminescent devices are both still low. In this project, we try to import the carrier transporting units into the side chain of mesogen-jacketed liquid crystalline polymers, and expect this will utilize the orientation order of liquid crystalline and improve the carrier transporting properties and improve the device outcoupling efficiency. In order to realize the idea, a serial of novel Optoelectronic functional mesogen-jacketed liquid crystalline polymers(OPFMJLCPs) will be reasonably designed through the introduction of benzodifuran units. We will plan to design and prepare OPFMJLCPs with different side chain end transporting groups and alkoxy end chains. Then, we are going to focus on the relationship between their chemical structures and liquid crystal properties. Furthermore, the effect of liquid crystalline phase structures on their carrier transporting properties and the effect of orientation on their device outcoupling efficiency will be investigated. We believe that we can obtain the comprehensive and deepgoing understand the properties of the OPFMJLCPs via the systematic study on design, synthesis, structure and properties. We will provide not only technological guidance but also theoretical basis for the preparation of new optoelectronic side-chain polymers.

侧链型聚合物光电材料在柔性显示、照明、传感器等众多领域里都具有极其广泛的应用。为解决目前侧链型聚合物载流子迁移率较低及电致发光器件出光损失的问题，在本项目中，我们将具有优异光电传输功能的结构引入甲壳型液晶聚合物的侧基，期望能充分利用甲壳型液晶的高有序性提高该类材料的载流子传输性能和电致发光器件的出光效率。具体地，我们将具有高载流子传输性能的苯并二呋喃结构引入甲壳型液晶高分子的侧基，设计并将制备侧链尾端传输基团、烷氧基链等多种不同结构的光电功能甲壳型液晶聚合物，研究其化学结构的变化与液晶相结构的关系，考察其液晶相结构的变化对其载流子传输性能的影响和取向对电致发光器件出光效率的影响。通过对该类侧链型聚合物的分子设计、合成、结构与性能的系统全面的研究，从而对其液晶性和光电性能做出更为深刻和全面的理解，为进一步的光电功能侧链型聚合物材料的制备提供理论和实验基础。

侧链型聚合物光电材料在太阳能电池、柔性显示、照明等众多领域里都具有极其广泛的应用。为解决目前侧链型聚合物载流子传输效率较低及光电效率较低的问题，在本项目中，我们将具有优异光电传输功能的结构引入甲壳型液晶聚合物的侧基，期望能充分利用甲壳型液晶的高有序性提高该类材料的载流子传输性能和光电效率。具体地，我们将具有高载流子传输性能的结构引入甲壳型液晶高分子的侧基，设计并制备了侧链尾端传输基团、烷氧基链等多种不同结构的光电功能甲壳型液晶聚合物，研究了其化学结构的变化与液晶相结构的关系，考察了其液晶相结构的变化对其光电性能的影响。通过对该类侧链型聚合物的分子设计、合成、结构与性能的系统全面的研究，发现该类甲壳型液晶聚合物能通过自由基聚合得到较高分子量的聚合物，并且具有好的成膜性和加工性，体现了较好的光电性能，因此该类甲壳型液晶光电功能材料是一类具有应用前景的光电功能侧链型聚合物材料。