乙烯砜型活性染料在阴离子表面活性剂体系中的水解动力学  

Study on hydrolytic kinetics of vinyl sulfone reactive dye in anionic surfactant system

作　　者：孙良喜 蔡国强[1,2,3] 章曼雯 葛华云[1,2,3] 王际平 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018 [2]浙江理工大学生态染整技术教育部工程研究中心,浙江杭州310018 [3]国家纺织与日用化学国际科技合作基地,浙江杭州310018

出　　处：《纺织学报》2015年第11期76-81,共6页Journal of Textile Research

基　　金：中国博士后科学基金资助项目(2014M561790);浙江省博士后科研择优资助项目(BSH1402060)

摘　　要：为研究活性染料在阴离子表面活性剂体系中的水解行为,采用高效液相色谱(HPLC)对乙烯砜型染料活性艳蓝KN-R在不同浓度的阴离子表面活性剂十二烷基苯磺酸钠(LAS)中的水解行为进行了定性及定量分析。结果表明:pH=10的条件下,KN-R在水及表面活性剂体系中的水解反应均为准一级反应,其水解速率常数受表面活性剂浓度和温度的影响较大;当LAS质量浓度为0.1 g/L时(<CMC值),其水解速率常数为1.37×10-2min-1,约为水中的3倍,对KN-R的水解起到促进作用;而当LAS质量浓度为1 g/L(>CMC值)时,其水解速率常数略小于水体系,对KN-R的水解起到抑制作用,温度升高将显著促进KN-R的水解。Hydrolytic kinetics of Reactive Brilliant Blue KN-R in sodium lauryl benzene sulfonate（ LAS） systems with different concentrations was investigated qualitatively and quantitatively using high performance liquid chromatography（ HPLC）. Results showed that hydrolytic reaction of KN-R in water and surfactant systems were both pseudo first-order reaction under the condition of 60 ℃ and p H = 10,and the hydrolysis rate constants were affected by the concentration of the LAS. When the concentration of LAS was 0. 1 g / L（ CMC）,the hydrolysis rate constant was about 1. 37 × 10-2min-1,which is 3 times higher than that of KN-R in water. The hydrolysis rate constant was slightly lower than that of KN-R in water with the increase of the concentration of LAS to 1 g / L（ CMC）,which means that in higher concentration of LAS systems,the hydrolytic reaction was partially inhibited. Meanwhile,the increase of temperature significantly accelerated the hydrolysis of KN-R.

关 键 词：活性艳蓝KN-R 十二烷基苯磺酸钠 高效液相色谱 水解 

分 类 号：TS193[轻工技术与工程—纺织化学与染整工程]