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Reaction of a Heterobifunctional Reactive Dye (C.I. Reactive Red 195) with Amino Groups and Phenol Groups

机译:异双官能活性染料(C.I.反应性红色195)与氨基和苯酚基的反应

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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.
机译:通过高效液相色谱法在pH7-10和温度50-90℃下研究具有氨基和苯酚基团的异双功能MCT / Vs反应性染料的反应行为。在60-80℃和pH8-9中获得MCT / VS反应性染料和氨基/酚基团的最佳反应条件。随着氨基和酚类与MCT / Vs反应性染料单独反应,氨基醇优选与VS组键合,但苯酚基团优选为MCT基团。作为在MCT / VS反应染料溶液中共存的氨基和苯酚基团,源自MCT /与反应性染料分子与苯酚基团的主要反应产物通过其MCT基团键合,并分别与VS组与氨基键合。

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