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


GÜLTEK A. , Aksut D., SEÇKİN T. , BİRHANLI E. , KARATAŞ M. O. , ALICI B.

TURKISH JOURNAL OF CHEMISTRY, cilt.39, ss.25-33, 2015 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 39 Konu: 1
  • Basım Tarihi: 2015
  • Doi Numarası: 10.3906/kim-1403-27
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Sayfa Sayıları: ss.25-33

Özet

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 colt, Staphylococcus aureus, and Pseudomonas aeruginosa.