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Reaction of a Heterobifunctional Reactive Dye (C.I. Reactive Red 195) with Amino Groups and Phenol Groups
Abstract:
The reaction behaviors of a heterobifunctional MCT/VS reactive dyes with amino groups and phenol groups were investigated at pH 7-10 and temperature 50-90 °C by means of high performance liquid chromatography. Optimum reaction conditions for MCT/VS reactive dye and amino/phenol groups were obtained at 60-80 °C and pH 8-9. As amino groups and phenol groups reacted with MCT/VS reactive dye individually, amino groups preferred to bond with VS groups but phenol groups preferred to MCT groups. As amino groups and phenol groups coexisted in the MCT/VS reactive dye solution, there was a main reaction product originated from the MCT/VS reactive dye molecule bonding with phenol groups by its MCT groups and bonding with amino groups by VS groups respectively.
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Pages:
132-137
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Online since:
January 2012
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