Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry
ISSN: 0975-413X
Abstract
Semiconducting behavior and antibacterial activity of some resins derived from p-Nitrophenol, Resorcinol and Formaldehyde
Author(s): Anita D. Kushwaha, Vinay V. Hiwase, Ashok B. KalambeThe resins PNPRF-I and PNPRF-II were derived from acid catalyzed polycondensation using 1M HCl at 120-1250C by varying monomer composition ratio. The resin obtained by condensing p-nitrophenol (0.1M), resorcinol (0.2M) and formaldehyde (0.4M) was abbreviated as PNPRF-I. Similarly the resin prepared by monomer composition p-nitrophenol (0.2M), resorcinol (0.1M) and formaldehyde (0.4M) was abbreviated as PNPRF-II. The tentative structures of these resins were determined by elemental analysis, 1H NMR, FT-IR and UV-Vis spectra. The molecular weight determinations were carried out by non-aqueous conductometric titrations. The conductivities of PNPRF-I and PNPRF-II were found to be in range 0.096 x 10-6 to 0.3294 x 10-6 and 0.0681x 10-6 to 3.1316 x 10-6 mho cm-1 respectively for temperature range 343-573K. The activation energies of conduction for PNPRF-I and PNPRF-II were found to be 4.089 kJ mol-1 and 5.365 kJ mol-1. The antibacterial activities relative to ampicilin for these resins were determined against gram +ve and gram –ve bacteria.
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