Dual effect of coumarin benzimidazolium ionic salt covalently bonded on a silica network

Authors

AHMET GÜLTEK
DAVUT AKSÜT
TURGAY SEÇKİN
EMRE BİRHANLI
MERT OLGUN KARATAŞ
BÜLENT ALICI

DOI

10.3906/kim-1403-27

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)

First Page

25

Last Page

33

Recommended Citation

GÜLTEK, AHMET; AKSÜT, DAVUT; SEÇKİN, TURGAY; BİRHANLI, EMRE; KARATAŞ, MERT OLGUN; and ALICI, BÜLENT (2015) "Dual effect of coumarin benzimidazolium ionic salt covalently bonded on a silica network," Turkish Journal of Chemistry: Vol. 39: No. 1, Article 3. https://doi.org/10.3906/kim-1403-27
Available at: https://journals.tubitak.gov.tr/chem/vol39/iss1/3