Design, synthesis of novel bisazo disperse dyes: Structure analysis and dyeing performance on PET
作者:Shengli Wang、Linbo Gao、Aiqin Hou、Kongliang Xie、Xiyu Song
DOI:10.1016/j.dyepig.2021.109761
日期:2021.12
previously reported bisazo disperse dyes’ low exhaustion, poor fastness performance or monotone color, constructed symmetrical bisazo disperse dyes exhibited excellent dyeing performance on polyethylene terephthalate (PET) fabrics, by introducing 1,4-butanediol as soft chain to lessen structure hardness of dye molecule and stronger hydrophobicity. Enhanced affinity between dye molecular and fiber was
为了获得具有更好染色性能的双偶氮分散染料,通过与重氮盐偶联合成了基于丁烷-1,4-二基双(乙基(苯基)氨基甲酸酯)的新型双偶氮分散染料。丁烷-1,4-二基双(乙基(苯基)氨基甲酸酯)是通过1,4-丁二醇和N-乙基-N-苯基甘氨酰氯的缩合制备的。N-乙基-N-苯基甘氨酰氯由N-乙基-N-苯基甘氨酸得到,N-乙基-N-苯基甘氨酸由N-乙基-N-苯基甘氨酸乙酯水解而成。与之前报道的双偶氮分散染料吸尽率低、牢度差或颜色单调相比,构建对称双偶氮分散染料在聚对苯二甲酸乙二醇酯 (PET) 织物上表现出优异的染色性能,通过引入 1,4-丁二醇作为软链来降低织物的结构硬度。染料分子和更强的疏水性。染料分子和纤维之间的亲合力增强是通过染料分子和纤维中存在的酯基实现的,分子大小的增加也增强了更强的范德华力和氢键。傅里叶变换红外光谱(FT-IR)和核磁共振技术(1 H NMR)用于确认合成染料的结构。UV-Vis