本项目拟开展基于喷墨打印技术的荧光聚合物光子晶体阵列及多重调控机制的研究。首先，合成两类分别基于光致异构和光产碱发光机理的可聚合荧光单体，并将其作为共聚物的组分引入到乳液聚合反应中制备核壳结构的聚（苯乙烯-丙烯酸乙酯-荧光单体）共聚物微球；通过优化实验条件，最终获得单分散的聚合物胶体粒子。并采用自组装法制备高度有序的聚合物光子晶体薄膜，研究组装条件及粒径分布对聚合物光子晶体的光子带隙的影响。在此基础上，利用喷墨打印设备制备聚合物光子晶体图案，进一步采用原位UV光诱导异构化反应或光产碱反应及荧光胺后处理形成荧光影像。研究光子带隙与荧光强度之间的关联关系，探索实现荧光增强的手段和机理。最后，研究温度和PH等因素对荧光强度及光子带隙位置的影响，最终获得可同时调节发光光谱和反射光谱的荧光聚合物光子晶体阵列。该项目的研究为聚合物光子晶体在光子器件、信息存储以及立体显示等领域的应用提供重要参考价值。

The work will focus on fluorescent polymer photonic crystal array by ink-jet printing technology and their multi-controlling mechanisms. First of all, we synthesize two classes of polymerizable fluorescent monomers based on photoisomerization and photobase luminescence mechanisms, respectively. And then we take them as the copolymer components to prepare poly (styrene-ethyl acrylate-fluorescent monomer) copolymer microspheres with core-shell structure by emulsion polymerization. Monodisperse and uniform-sized polymer colloidal particles will be fabricated through the optimization of experimental conditions, and we will further obtain highly-ordered polymer photonic crystal films by using self-assembling method. The effects of the assembly conditions and particle size distribution on the photonic band gaps (PBGs) will be investigated in detail. Furthermore, we prepare polymer photonic crystal patterns employing inkjet printing technology, and the fluorescent images form by in-situ UV light induced photoisomerization or photobase reaction followed by the treatment of fluorescent amine. The relationships between PBGs and the fluorescence intensity will be highlighted, we also explore the way and mechanism of the fluorescence enhancement. Finally, the influences of temperature and PH on the fluorescent intensity and PBGs position are studied, thereby achieving a dual switching of fluorescence spectra and the reflection spectra in the fluorescent polymer photonic crystal array. This work has a significant value for the application of polymer photonic crystal in photonic devices, information storage and stereo display technologies.