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标题：Effect of Additional Hydroxyl Group On Dissolution Of Azo Dyes derived from N-carboxylic acid-1,8-naphthalimide in aqueous solutions containing various surface active agents
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作者：Gharanjig, K.
期刊名称：Progress in Color, Colorants and Coatings
印刷版ISSN：2008-2134
电子版ISSN：2383-1790
出版年度：2013
卷号：6
期号：2
页码：67-79
出版社：Institute for Color Science and Technology
摘要：Dissolution of azo dyes derived from N-carboxylic acid-1,8-naphthalimide was studied in aqueous solutions containing formaldehyde condensation of naphthalenesulphonic acid and fatty alcohol ethylene oxide compound surfactants and effect of additional hydroxyl group on chemical structure of dye on dissolution was investigated. In addition, the effect of important factors on dissolution of used dyes in surfactant solutions such as the concentration of surfactants, temperature and time were considered. The results revealed that the dissolution rate of both dyes in formaldehyde condensation of naphthalenesulphonic acid was greater than the fatty alcohol ethylene oxide compound. In the same circumstance, the dissolution values of dyes indicated that dye 2 containing N-ethyl-n-2-hydroxyethyl aniline had more solubility than dye 1 containing N,N-diethylaniline that it can be attributed to the greater hydrophilicity of the dye 2 relative than dye 1. The results suggested that the dissolution of dyes in water containing surfactants was depended on the chemical structure of dyes and the type of used surfactants.
关键词：Dissolution;Hydroxyl group;Carboxylic acid;1;8;Naphthalimide;Dye;Surfactant