Abstract:A síntese de novos azocorantes heterocíclicos derivados de 5-acetil-2-amino-4-metiltiazol (1) utilizando-se de vários N-alquil derivados da anilina (2a-e) e suas performances como corantes dispersos foram avaliadas em tecidos de poliester e nylon. As propriedades espectrais desses corantes foram determinadas. Os tecidos tingidos mostraram fixação moderada a boa na presença de luz, boa estabilidade à fricção, transpiração, lavagem e excelente estabilidade à sublimação. Esses corantes forneceram tonalidades de c… Show more
“…From the IR data the azo group peak appeared around 1411 cm -1 [33,34] in both of the two monomers (13 & 24) (and in the resulting polymers) indicating that the coupling was successful. This method of preparation resulted in the development of MHBP with an even greater number of available halogens than polymers (2) and (7).…”
“…From the IR data the azo group peak appeared around 1411 cm -1 [33,34] in both of the two monomers (13 & 24) (and in the resulting polymers) indicating that the coupling was successful. This method of preparation resulted in the development of MHBP with an even greater number of available halogens than polymers (2) and (7).…”
“…[1] of the schiff base (Sch) showed appearance of absorption bond at (1598) cm -1 was due to the (C=N) of imine group (17) . FT.IR spectrum also showed the appearance of the sharp strong absorption band at (1660) cm -1 was due to the (C=O) of aldehyde group (18) and the weak of absorption bonds at (2821) cm -1 and (2796) cm -1 were attributed to the (C-H) of aldehyde group (19) . The FT.IR spectrum, Fig.…”
“…5-Acetyl-2-amino-4-methylthiazole salt (1) was prepared according to the reported literature [36]. The freshly diazonium salt 1 (10 mmol) was added portionwise with stirring to a cold solution (0-5 C) of 3-chloropentane-2,4-dione (2) (10 mmol) in ethanol (50 mL) in the presence of AcONa.3H2O (2 g) over period of 30 min.…”
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