Study on Hydrolysis and Ammonolysis Behaviors of Vinylsulfone Reactive Dyes

摘要：

Using isopropyl amine as a model compound for simulating amino groups on protein fiber,hydrolysis and ammonolysis behaviors of vinylsulfone reactive dyes were studied under various conditions by high performance liquid chromatography (HPLC).It was found that there were two hydrolysis products and two ammonolysis products in the hydrolysis and ammonolysis processes of vinylsulfone reactive dyes.Ammonolysis reactions were always much quicker than hydrolysis reactions in the competitive reaction system at 50~70℃ in pH 7～11.The preference for the ammonolysis reaction decreased with pH and/or temperature rising.The quantity ratio between the two ammonolyzed dyes was related with pH,temperature,relative concentration of isopropyl amine to dye.

关键词： Reactive dyes Vinylsulfone Hydrolysis Ammonolysis HPLC

作者: Min Shao Jianzhong Shao Jinqiang Liu Lan Zhou

作者单位: Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ZhejiangSci-Tech University),Ministry of Education,Hangzhou 310018,China

会议类型: 国际会议

会议名称: 2008年先进纺织材料暨加工技术国际学术会议

会议地点: 杭州

会议语种:英文

在线出版日期: 2008-10-15（万方平台首次上网日期，不代表论文的发表时间）