Synthesis of a gemini quaternary ammonium salt and its reaction with wool fabric using click chemistry

Abstract

In this study, we have successfully synthesized a gemini quaternary ammonium salt C₂₄H₃₈O₄N₂Br₂ and applied it to wool fabric to obtain antibacterial properties. First, tris(2-carboxyethyl)phosphine (TCEP) was utilized as a reducing agent to generate thiol groups on the surface of the wool fabric. Then, these thiol groups reacted with CC groups of the gemini quaternary ammonium salt via click chemistry. The structure of the as-prepared ionic dimethacrylate (IDMA) monomers was characterized using FT-IR spectroscopy, ¹H-NMR analysis, mass spectrometry and elemental analysis. The modified wool fabric exhibited good anti-bacterial properties against both E. coli and S. aureus. Furthermore, the modified fabric exhibits good antistatic properties and its mechanical properties are improved by the chemical bonds of the modification.