聚氮杂芴纳米粒子及其酸调制光学特性研究

Polydiazafluorene Conjugated Polymer Nanoparticles and Their Tunable Luminescence Property with Acid

近年来,水相分散共轭聚合物纳米粒子为实现疏水共轭聚合物在绿色水溶液加工器件、生物传感及其成像提供了便捷的途径,然而在荧光共轭聚合物纳米粒子的后功能化及其光电特性调控方面研究较少。文中将特异配位能力的氮杂芴基团引入共轭聚合物,合成了一类新型聚氮杂芴材料,PF8-co-DAF8,通过再沉淀法制备了尺寸均一的聚合物纳米粒子,并研究通过以酸H+作为后修饰基团分子,开展了PF8-co-DAF8在有机溶液和水分散纳米粒子的后功能化研究,显示出优异的发光可调特性,为进一步实现水相纳米粒子的后功能化及其在有机喷墨打印电子器件应用方面提供可能的有效途径。

Recently,water-dispersible conjugated polymer nanoparticles have attracted much attention owing to their potential applications in the areas of aqueous-processed optoelectronics and bio-electronics.For labile binuclear complex and supramolecular coordination of diazafluorene,4,5-diazafluorene-containing polyfluorenes,PF8-co-DAF8,are designed and synthesized.Water-dispersible conjugated polymer nanoparticles （CPNs） of PF8-co-DAF8 are obtained by the typical reprecipitation methods,thus it exhibits reversible optical stimulate-responsive property by the proton titration in water dispersion.The result provide a possible strategy to extensive application for organic and bio-electronics.