Classifications, properties, recent synthesis and applications of azo dyes
Said BenkhayaLaboratory Agro-Resources, Polymers and Process Engineering (LARPOGP)/Organic and Polymer Chemistry, Faculty of Sciences, University Ibn Tofail, MoroccoSouad M’rabetLaboratory of Geosciences and Environment, Team Development Geo Resource and Renovation Territories, Faculty of Science, University Ibn Tofail, Kenitra, MoroccoAhmed El HarfiLaboratory Agro-Resources, Polymers and Process Engineering (LARPOGP)/Organic and Polymer Chemistry, Faculty of Sciences, University Ibn Tofail, Morocco
2020en
ABI
Abstract
In this work, we have presented a very detailed review of the different classification of azo dyes as a function of the number of azo groups and the appropriate functional groups. Then we pointed out some chemical properties of these dyes such as reactivity, isomerization and tautomerism and listed. In the following, we have summarized some recent syntheses of azo dyes and the mechanism of azo dye/polymer conjugation. Finally, we indicate the principle of Gewald's reaction and its application to the synthesis of new azo dyes.
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