中国发明专利：基于三线态-三线态湮灭上转换发光的光致形变高分子材料

发明（设计）人：俞燕蕾，李富友，蒋臻，徐明

申请人：复旦大学

专利号：ZL 201310419733.4

摘要：

本发明属于光响应高分子材料领域，具体为一种基于三线态-三线态湮灭上转换发光机制的光致形变高分子材料。该材料由含有偶氮苯基团的液晶高分子和基于三线态-三线态湮灭的上转换发光材料组成。含有偶氮苯基团的液晶高分子本身对长波长可见光或近红外光没有刺激响应性，在材料体系制备过程引入三线态-三线态湮灭的上转换发光材料，通过上转换过程产生使偶氮苯基团发生刺激响应的短波可见光，使得整个材料体系在长波长可见光或者近红外光的照射下能够实现形变；该长波长可见光或近红外光驱动材料体系可促进光致形变高分子材料在生物芯片领域和微执行器件等方面的应用。

Abstract：

The invention belongs to the filed of photoresponse high polymer materials and particularly relates to a photoinduced-deformation high polymer material based on a triplet state-triplet state annihilation up-conversion luminescence mechanism. The material is composed of liquid crystal polymers containing azo phenyl groups and up-conversion luminescent materials based on triplet state-triplet state annihilation. The liquid crystal polymers containing the azo phenyl groups do not have the stimulation responsiveness on long-wavelength visible light or near-infrared light. The up-conversion luminescent materials of triplet state-triplet state annihilation are introduced in the material system preparing process, short-wave visible light enabling the azo phenyl groups to have the stimulation response is generated in the up-conversion process, and therefore a whole material system can deform under irradiation of the long-wavelength visible light or the near-infrared light. The long-wavelength visible light or the near-infrared light drives the material system so as to promote application of the photoinduced-deformation high polymer material in field of biochips, aspects of micro executing devices and the like.