新型高分子发光材料聚丁二酸丁二醇酯/聚乙烯基咔唑薄膜制备及发光性能研究

Study on preparation and luminescent properties of a new type luminescent material: PBS / PVK composites

以氯仿为聚丁二酸丁二醇酯(PBS)和聚乙烯基咔唑(PVK)的共溶剂,采用溶液共溶法制备了PBS/PVK复合发光材料.通过红外光谱分析仪确定PVK的分子结构,并分别采用差示扫描量热仪(DSC)、荧光光谱分析仪(XRF)研究不同含量的PVK对PBS/PVK复合发光材料热性能及发光性能的影响.结果表明:随着PVK含量增加,复合材料结晶温度降低且结晶度减小,这有利于提高薄膜的透明性;而随着PVK的加入,复合材料发光性能变强,且由于PBS链段的稀释作用,从一定程度上提高了PBS/PVK复合材料蓝光发射的饱和色纯度.

A new type luminescent material based on poly（ butylenesuccinate）（ PBS） and polyvinyl carbazolethe（ PVK） was prepared by the method of solution blend with chloroform as the co- solvent. The structure of PVK was confirmed by infrared spectrometer. And crystallization behaviors and luminescent properties of PBS / PVK composites were investigated by differential scanning calorimeter（ DSC） and X- ray Fluorescence Spectroscopy（ XRF）. From DSC data analysis,crystallization temperature and the degree of crystallinity reduce with the increase of PVK content in composites. But from XRF results analysis,the addition of PVK will enhance the luminescent properties of PBS / PVK composites,and with the dilution effect of PBS,the degree of saturated color purity of the PBS / PVK composite material’s blue light emission is enhanced.