Search
2 articles for “ESR doublet”
-
A Study of Hyperfine Interactions of Peroxy Radicals in Irradiated PE Copolymer at Low Temperatures
Abstract: Hyperfine interactions occurring around the magnetic environment of peroxy radical are investigated by electron spin resonance (ESR) technique. For this purpose, ESR spectra are recorded in the temperature range of 77 to 300 K. ESR spectra at 77 K possess some hyperfine structure together with peroxy doublet; while at high temperatures only peroxy doublet is observed. Hyperfine parameters like g-values, peak to peak separation, spread are calculated and their temperature …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 8, Issue 2, 2017 · pp. 13–19 Read article
-
Electron Beam and Gamma Radiation Dose Dependency on the Degradation Products of Polytetrafluoroethylene (PTFE)
Abstract: AbstractGamma radiation induced degradation phenomena of polytetrafluoroethylene (PTFE) in the form of granules has been studied. The Electron Spin Resonance (ESR) technique was used to study radical generation and behavior under different conditions. The ESR spectra of PTFE irradiated at low or very high doses of irradiation were doublets, characteristic of peroxy radicals. Similarly spectra at different temperatures are also doublets. In order to study nature of free radicals, the …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 104–114 Read article