Synthesis of new azo dye polymers based on naphthol by oxidative polycondensation: antimicrobial activity and fastness studies


JOURNAL OF POLYMER RESEARCH, cilt.27, sa.1, 2019 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Konu: 1
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1007/s10965-019-1982-3


Azo dye polymers were synthesized by an oxidative polycondensation reaction of naphthol based azo dyes with the oxidants NaOCl in an aqueous alkaline medium. These synthesized azo dye polymers were characterized by UV-Vis, FT-IR, H-1 NMR techniques. The surface morphology of the azo dye polymers was understood by Scanning Electronic Microscopic study(SEM). The changes in weight in relation to change in temperature of synthesized compounds the was studied by TGA/DTA analysis. All the novel polymers were characterized to determine molecular weights by gel permeation chromatography(GPC). All of the azo dye monomers and polymers were researched for antibacterial (Corynebacterium xerosis, Bacillus brevis, Bacillus megaterium, Bacillus cereus, Mycobacterium smegmatis, Staphylococcus aureus, Micrococcus luteus Enterococcus faecalis, Acinetobacter baumannii, Pseudomonas aeruginosa, Klebsiella pneumoniae, Escherichia coli, Yersinia enterocolitica) and antifungal (Kluyveromyces fragilis, Saccharomyces cerevisiae, Candida albicans) activities. When results of antibacterial activity of synthesized compounds was compared with standard Ampicillin, Streptomycin Sulfate, Nystatin. it is seen that the azo dye monomers had good antibacterial activity whereas the azo dye polymers did not have as good activity as the monomers. The dyes were examined in respect of their washing, water, sweat (acid and base) and frictional (dry and wet) fastness. From the results, It was found that The fastness properties of the azo dye monomers are better than the polymers. Because the bonding ability to the fabric in the monomers is better than the long chain polymers having a high molecular weight.