To read this content please select one of the options below:

Design, characterization, theoretical studies, and dyeing properties of new novel diazo salicylaldehyde Schiff base catalyzed with ceric (IV) ammonium nitrate (CAN) as an eco-friendly catalyst

Ali A. Ali (Department of Chemistry, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt)
H. Abd El-Wahab (Department of Chemistry, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt)
Moustafa S. Abusaif (Department of Chemistry, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt)
Ahmed Ragab (Department of Chemistry, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt)
Omar A. Abdel-Jaid (Department of Chemistry, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt)
E.A. Eldeeb (Department of Environmental Studies, Institute of Graduate Studies and Researches, Alexandria University Egypt, Alexandria, Egypt)
Yousry A. Ammar (Department of Chemistry, Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 27 February 2023

128

Abstract

Purpose

The paper aims to the preparation of novel disperse dye based on azo salicylaldehyde derivatives TF-A [2-hydroxy-5-((3-(trifluoromethyl)phenyl)diazenyl)benzaldehyde] and full evaluation of their use as disperse dye TF-ASC [bis 2-hydroxy-5-((3-(trifluoromethyl)phenyl)diazenyl)benzaldehyde Schiff base with 4,4'-methylenedianiline] for dyeing polyester fabric at various conditions.

Design/methodology/approach

The dispersed dye was synthesized via Schiff base condensation in the presence of ceric ammonium nitrate cerium ammonium nitrate 10 mmole% as an eco-friendly catalyst at room temperature. The chemical structure of the prepared dye was characterized via elemental analysis, Fourier-transform infrared spectroscopy, 1H- and 13 C-NMR spectroscopic analysis tools. This study thoroughly examined the dyeing of disperse dye TF-ASC on polyester at various conditions. The characteristics of dyed polyester fabric were measured by colour measurements, as well as light, washing, crock fastness and finally, colour strength. The discrete fourier transform (DFT) theoretical studies, including EHOMO, ELUMO and optimized geometrical structure, were assumed and discussed in detail.

Findings

The results showed that the synthesized organic dye TF-ASC was highly functional and appropriate for this kind of dyeing method. The dyeing fabrics obtained from disperse dye TF-ASC, properties possess high colour strength as well as good overall fastness properties. These dyes had a high affinity for polyester fabric, with just a tiny change in dye affinity when the pH was changed, even under alkaline circumstances. The dye levelness and shade depth of the colour results were good, and there were a variety of hues from light brownish yellow to deep brownish yellow. The results obtained from DFT computational studies such as EHOMO, ELUMO, optimized structure, diploe moment µ and electrophilicity index deduced that prepared organic dye TF-ASC is more applicable as a dispersed dye.

Originality/value

This research is significant because it provides a new dye for dyeing polyethylene terephthalate fibres with exceptional brightness and levelness; the method of preparation is a useful pathway due to its being known as a green chemistry method.

Keywords

Acknowledgements

The authors wish to express deep thanks to Chemistry Department, Faculty of Science, Al-Azhar University, Egypt for equipment and chemical support.

Citation

Ali, A.A., Abd El-Wahab, H., Abusaif, M.S., Ragab, A., Abdel-Jaid, O.A., Eldeeb, E.A. and Ammar, Y.A. (2023), "Design, characterization, theoretical studies, and dyeing properties of new novel diazo salicylaldehyde Schiff base catalyzed with ceric (IV) ammonium nitrate (CAN) as an eco-friendly catalyst", Pigment & Resin Technology, Vol. ahead-of-print No. ahead-of-print. https://doi.org/10.1108/PRT-12-2022-0141

Publisher

:

Emerald Publishing Limited

Copyright © 2023, Emerald Publishing Limited

Related articles