【摘要】 针对传统荧光增白剂耐酸性差、在酸性条件下容易凝结沉淀的缺点,采用三聚氯氰分别与对氨基苯甲酸、4,4′-二氨基二苯乙烯-2,2′-二磺酸和脂肪胺类化合物进行三步缩合反应得到三嗪基氨基二苯乙烯型荧光增白剂,选择三乙醇胺、三乙胺、N,N-二甲基乙醇胺、N-甲基二乙醇胺作为反应物合成4种新型两性荧光增白剂。对4种新型两性荧光增白剂进行了结构表征,并与传统的阴离子型荧光增白剂对比分析了其荧光发射性能和染色性能。结果表明两性荧光增白剂的荧光量子产率较低。荧光发射性能较弱,但该类荧光增白剂更适合在强酸性条件下使用。更多还原

【Abstract】 Considering the weak acid resistivity and solubility of the anionic FWA in acidic conditions,the triazinyl aminostilbene fluorescent whitening agents were synthesized through three-step condensation reactions using 4-aminobenzoic acid with cyanuric chloride(CC),4,4′-diamino stilbene-2,2′-disulfonic acid(DSD acid) and aliphatic amines as the basic materials.Triethanolamine,triethylamine,N,N-dimethyl ethanolamine and N-methyldiethanolamine were used to synthesize four new types of amphoteric fluorescent by the third step condensation reaction.The structural characterization of the synthesized amphoteric fluorescent whitening agents(FWA) was given.The fluorescence emission properties and the dyeing properties of the amphoteric FWA were studied by comparing with those of anionic FWA.The results showed that the fluorescence emission efficiency was lower than that of anionic FWA,and the amphoteric FWA was more suitable for dyeing in acidic conditions.更多还原