A New Strategy for Multifunctional Polymers Exhibiting High-Performance-Photorefractive Effects

9529682 Yu这笔赠款将专注于合成一种新型的光折变聚合物系统，旨在解决PR聚合物材料中的几个关键问题，如低量子产率、复合材料中的相分离以及全功能化PR聚合物中的小净光学增益。这种聚合物体系是基于官能化共轭聚合物和超分子过渡金属化合物之间的杂化结构。预计Ru或Os络合物将在光导过程中扮演电子储存库的角色，而共轭体系将扮演电荷分离的分子管道的角色。这些聚合物的精制和详细的物理特性将被研究。这项工作将产生实际有用的材料，并将为合成功能聚合物，特别是那些含有离子过渡金属物种的聚合物增加核心基础知识。***

9529682 Yu This grant will focus on synthesizing a novel photorefractive polymer system which is designed to address several crucial issues in PR polymeric materials, such as low quantum yields, phase separation in the composite materials and small net optical gains in fully functionalized PR polymers. This polymer system is based upon a hybridized structure between functionalized conjugated polymers and supramolecular transition metal compounds. It is expected that the ruthenium or osmium complexes will play the role of electron reservoir for the photoconduction process and the conjugated system will play the role of the molecular pipe for the charge separation. The elaboration and detailed physical characterizations of these polymers will be studied. %%% This work will generate practically useful materials and will add central fundamental knowledge to the synthesis of functional polymers, especially those containing ionic transitional metal species. ***