The synthesized dyes exhibited significant antioxidant activities.Īntioxidant activity Dyeing Heterocyclic azo dye N-Phenylpiperazine Spectroscopy.Ĭopyright © 2015 Elsevier B.V. Investigation of antioxidant activity of compounds was carried out by ferric reducing antioxidant power (FRAP) method. The fastness properties of the dyed fabrics such as wash, light and rubbing fastness degrees were measured by standard methods. The novel, Push by Sapphire, is interpreted through the eyes of Claireece Precious Jones, an overweight, illiterate, 16 year old living in a Harlem. 5, 2021 A finely wrought psychological study of motherhood and inherited trauma. The prepared heterocyclic azo dyes were applied for dyeing polyester fibers and their dyeing properties were studied. THE PUSH by Ashley Audrain RELEASE DATE: Jan. The solvatochromic behavior of the dyes was studied in a set of 10 solvents of different polarity and considerable results were obtained. The structures of the dyes and synthesized intermediate were confirmed by FT-IR, (1)H NMR, (13)C NMR and UV-vis analyses. Six novel push-pull azo disperse dyes were synthesized via classical azo coupling reaction using 2-amino-thiazolyl derivatives as the diazo components and 1-(4-bromobenzyl)-4-phenylpiperazine as a key coupling intermediate.
0 Comments
Leave a Reply. |