摘要
以酒石酸,邻菲罗啉作为配体,稀土铕(Eu3+)作为中心离子,合成出了铕-酒石酸-邻菲罗啉的三元配合物.利用三元配合物中酒石酸中未配位的-OH作为多元醇的活性基团,与具有活性基团-NCO的IPDI反应制备了具有键合型的聚氨酯高分子发光薄膜.通过EDTA配体滴定分析、傅里叶变换红外光谱分析,紫外、热重分析、元素分析和荧光光谱分析,表征了三元配合物以及所合成的聚氨酯稀土薄膜的组成、热稳定性和发光性能.结果表明,酒石酸中的羧基以桥键的方式与铕发生了配位,phen主要起能量传递作用.配合物的最大吸收波长与phen相比略有红移;在400nm和401nm波长光激发下,三元配合物及发光材料在590nm和610nm处均能发出较强的特征荧光,合成的稀土高分子聚合物具有无毒、无味、热稳定性能高等特点.
With tartaric acid,phenanthroline as ligand,rare earth europium （Eu3＋） as central ion, ternary complexes of terpene tartaric acid phenanthroline were synthesized. Using the uncoordinated OH of tartaric acid in the ternary complex as the active group of the polyol, polyurethane polymer light emitting film with a bonding type was prepared by reacting with IPDI having active group NCO. Ligand analysis by EDTA ligands,Fourier transform infrared spectrometry, UV, thermogravimetric analysis, and fluorescence spectroscopy, characterize the composition, thermal stability and luminescent properties of the ternary complexes and the synthesized waterborne polyurethane rare earth fihns. The results showed that the car boxyl groups in tartaric acid were coordinated with hydrazine by way of bridges, and phens mainly played the role of energy transfer. The naaximum absorption of the complex is slightly red shifted compared to that ofphen. Under the excitation of wavelengths of 400 nmand401 nm,the ternary complex and the luminescent material can emit strong characteristic fluores cence at both 590 and 610 nm. The synthetic rare earth polymer has the characteristics of non toxic, odorless, high thermal stability.
作者
李运涛
韩振斌
阮方毅
邱硕
LI Yun tao;HAN Zhen bin;RUAN Fang yi;QIU Shuo(Shaanxi Key Laboratory of Chemical Additives for Industry,Shaanxi University of Science ＆ Technology Xi＇an 710021,China)
出处
《陕西科技大学学报》
CAS
2018年第6期76-81,共6页
Journal of Shaanxi University of Science & Technology
基金
国家"十三五"重点研发计划项目(2017YFB0308500)
国家自然科学基金项目(21776169)
关键词
稀土
水性聚氨酯复合材料
三元配合物
荧光性能
热稳定性能
rare earth
waterborne polyurethane composite material
ternary complex
hydroxyl radical fluorescence property
thermal stability
