文献类型：期刊文献

中文题名：双卤代均三嗪活性染料水解反应机制及其动力学

英文题名：Hydrolysis mechanism and kinetics of bis( halogeno-s-trazine) reactive dyes

作者：胡玲玲[1,2];范雪荣[1]

机构：[1]江南大学纺织服装学院;[2]绍兴文理学院纺织服装学院

年份：2013

卷号：34

期号：10

起止页码：68

中文期刊名：纺织学报

外文期刊名：Journal of Textile Research

收录：CSTPCD、、北大核心2011、Scopus、北大核心、CSCD、CSCD2013_2014

基金：浙江省科技厅公益技术项目(2011C21071)

语种：中文

中文关键词：活性染料;双卤代均三嗪活性染料;水解;动力学;高效液相色谱法

外文关键词：reactive dye ; bis （halogeno-s-trazine） reactive dye ; hydrolysis ; kinetics ; HPLC

中文摘要：采用反相离子对高效液相色谱研究双卤代均三嗪活性染料(包括双一氯均三嗪活性染料活性红KE-3B和双一氟均三嗪活性染料活性红LS-2G)的水解反应。从双卤代均三嗪活性染料的水解反应机制、色谱峰的定性分析、动力学参数的计算等方面进行探讨,并测试了90℃下,pH值为11.0时双一氯均三嗪活性染料活性红KE-3B和80℃下,pH值为11.0时双一氟均三嗪活性染料活性红LS-2G的水解性能,获得了染料的双卤代均三嗪形式和一卤代一羟基双均三嗪形式的水解速率常数。结果表明,80℃下双一氟均三嗪活性染料活性红LS-2G的反应性约是90℃下双一氯均三嗪染料活性红KE-3B的3.4倍;2种双卤代均三嗪活性染料中第1个卤原子的反应均导致第2个卤原子的钝化,反应速率降低;且染料反应性的高低主要是由第1步反应的速率决定的。

外文摘要：Hydrolysis reaction of bis （halogeno-s-trazine） reactive dyes （ including bismonochloro-s- trazine reactive dye Reactive Red KE-3B and bismonofiuoro-s-trazine reactive dye Reactive Red LS-2G） were studied by means of reversed-phase ion-pair high performance liquid chromatography（HPLC）. From some aspects such as hydrolysis mechanism of bis（halogeno-s-trazine） reactive dyes, qualitative analysis of chromatographic peak and calculation of kinetics parameters, the hydrolysis performance of the bismonochloro-s-trazine reactive dye Reactive Red KE-3B at 90 ℃ , pH = 1 l. 0 and the bismonofluoro-s- trazine reactive dye Reactive Red LS-2G at 80 ℃ , pH = 11.0 were discussed, and hydrolysis rate constants of his （halogeno-s-trazine） form and monohalogenomonohydroxybis-s-trazine form of dyes were determined. The reactivity of bismonoiluoro-s-trazine reactive dye Reactive Red LS-2G was found to be 3.4 times as much as that of bismonochloro-s-trazine reactive dye Reactive Red KE-3B. The reaction of the first halogen atom in bis（halogeno-s-trazine） reactive dyes can result in the inactivation of the second halogen atom（i, e. reduction of reaction rate ） , so the reactivity of dyes were determined mainly by the first reaction step.