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- Title
Syntheses, structures, electric conduction, electrochemical properties and antimicrobial activity of azomethine monomer and oligomer based on 4-hydroxybenzaldehyde and 2-aminopyridine.
- Authors
Kaya, Ismet; Bilici, Ali
- Abstract
The effects of temperature (50-80 °C), reaction time (up to 15 h) as well as type and concentration of oxidizing agent (NaOCl, air O2, H2O2) on the course of oxidative polymerization of 4-[(pyridin-2-yl-imino)methyl]phenol (4-PIMP) in aqueous alkaline medium, and on the yield of the oligomers formed (O-4-PIMP) were investigated. The optimal conditions of the process have been found. Reaction products were characterized using the following methods: ¹H NMR, 13C NMR, FT-IR, UV-VIS, gel permeation chromatography and thermal analyses TG-DTA. Mn values of O-4-PIMP are in the range 1250-4450. The oligomer shows better thermal stability than the monomer. On the basis of voltammetric measurements' results the electrochemical properties of 4-PIMP and O-4-PIMP were characterized in detail, including an effect of iodine doping of O-4-PIMP on the electric conduction. The comparison of antibacterial activity of 4-PIMP and O-4-PIMP against 8 bacterial strains has been done.
- Subjects
POLYMERIZATION; BENZALDEHYDE; AMINOPYRIDINES; OLIGOMERS; GEL permeation chromatography; VOLTAMMETRY; THERMAL analysis; OXIDIZING agents; NUCLEAR magnetic resonance; FOURIER transform infrared spectroscopy; ANTI-infective agents
- Publication
Polimery, 2007, Vol 52, Issue 11/12, p827
- ISSN
0032-2725
- Publication type
Article
- DOI
10.14314/polimery.2007.827