Authors: AHMET GÜLTEK, DAVUT AKSÜT, TURGAY SEÇKİN, EMRE BİRHANLI, MERT OLGUN KARATAŞ, BÜLENT ALICI
Abstract: Synthesis of the ionic liquid 1-allyl-3-(4-methyl-7,8-dihydroxy-2H-chromen-2-one) benzimidazolium chloride followed by the conversion of ammonium salts on the imidazole ring hooked to the coumarin group was modified by postmodification of the silica matrix where 3-chloropropyltrimethoxysilane was used as not only a surface modification agent, but also as an ATRP halogen source. The synergetic effect of charged ammonium groups as well as hydroxyl groups present on the coumarin was investigated in terms of ATRP polymerization. The results confirmed that brush polymers show outstanding antibacterial effects against Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa.
Keywords: Ionic liquid, ATRP, silica, antibacterial polymer, benzimidazolium derivatives, coumarin, quaternary ammonium compounds (QACs)
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