설파디아진 은으로부터 항균 산성염료 및 분산염색용 항균 첨가제의 합성과 이들의 특성 분석

Abstract

Two acid dyes having excellent antimicrobial activity were synthesized by using silver sulfadiazine, a wellknownantibiotic, and 8-amino-1-naphthol-3,6-disulfonic acid (H-acid). The diazonium salt of silver sulfadiazine (S1)and the acetylated H-acid (H1) were prepared first, and then an antimicrobial red acid dye (Acid-Red) was synthesizedvia a coupling reaction of S1 and H1. An antimicrobial blue acid dye (Acid-Blue) was also synthesized by the successivecoupling reactions of H-acid with the diazonium salt of aniline-2,5-disulfonic acid (B1) and the diazonium saltof sliver sulfadiazine (S1). Two colorless antimicrobial additives for disperse dyeing, Disperse-ES and Disperse-AS,were also synthesized by reacting silver sulfadiazine with diethyl sulfate and acetic anhydride, respectively. The synthesizedantimicrobial dyes and additives were characterized by Fourier transform infrared (FT-IR), UV-vis, and energydispersive X-ray (EDX) analyses. Although the nylon fabric dyed with either Acid-Red or Acid-Blue showed poor lightfastness, it had good washing and crocking fastness. The nylon fabrics dyed with Acid-Red and Acid-Blue and polyethyleneterephthalate (PET) fabrics treated with Disperse-ES or Disperse-AS showed excellent antimicrobial activitiesafter 10 repeated launderings.