文档介绍：季铵盐水溶性高分子荧光材料合成与光谱性能研究
蒋光富刘静
(咸阳师范学院化学与化工学院, 陕西咸阳 712000)
摘要:合成了五种1,8-萘酰亚胺衍生物(Ι),并以此为原料接枝到三嗪环上,合成出含有复合荧光发色团的荧光材料(Ⅱ),通过对(Ⅱ)的季铵盐化反应合成含有不饱和基团的荧光单体,然后再与丙烯酰胺共聚,最终合成了五种季铵盐水溶性高分子荧光材料(Ⅲ)。主要考察了产物在水中和乙醇中的紫外吸收、荧光发射光谱。并对(Ⅲ)和(Ⅱ)在耐光性、耐热性、耐酸碱性方面做了比较,此外研究了其在不同极性溶剂中的发射光谱和在水中的荧光自猝灭现象。结果表明,高分子荧光材料在耐光性、耐热性、耐酸碱性方面和其浓度自猝灭范围均优于荧光小分子,具有广阔的应用前景。
关键词:水溶性,高分子荧光材料,耐光性,耐热性,耐酸碱性,浓度自猝灭,季铵盐
Quaternary Ammonium Salt Water Soluble Polymer Fluorescence Materials Synthesis And Spectroscopic Properties
JIANG Guang-Fu,Liu Jing
(College of Chemistry and Chemical,Xianyang Normal University,Xianyang 712000,ShanXi,China)
bining five kinds of 1, 8-naphthalene imide derivatives (Ι), and takes it as a raw material grafted to the triazine ring, combining out the fluorescent materials (Ⅱ) that posite fluorescence chromophoric, through the (Ⅱ) of quaternary ammonium salt chemical reaction synthesis of unsaturated fluorescent monomer, and then with acrylamide copolymer, and ultimately synthetic five kinds of quaternary ammonium salt type water-soluble polymer fluorescent materials (Ⅲ). Mainly inspects the product in water and ethanol in the ultraviolet absorption, fluorescence emission spectrum. pared the (Ⅲ) with the (Ⅱ) in light resistance, heat resistance, acid-proof alkaline aspects, in addition to study the emission spectrum in the different polar solvent and the fluorescence in the water from quenching phenomenon. The results show that polymer fluorescent materials in light resistance, heat resistance, acid alkali and its concentration self quenching scope is better than the fluorescence of small molecules, has the broad application prospect.
Key words:Water-soluble, polymer fluorescent materials, light resistance, heat resistance, acid and alkaline, concentration self quenching, quaternary ammonium salt
前言
4,4′-二氨基二苯乙烯-2,2′-二磺酸通常被称为DSD酸,它是制各种荧光材料以及荧光增白剂的主要原料,合成三嗪类二苯乙烯型荧光材料的方法之一就是通过DSD酸与三聚氯氰反应,使三聚氯氰上的氯与其他亲核试剂发生缩合反应来完成。由于4,4′-二氨基二苯乙烯-2,2′-二磺酸-三嗪基衍生物的光致异构作用,该荧光小分子材料具有小分子荧光材料共同的缺点:耐光性差。
萘酰亚胺类材料色泽鲜艳