ESR and ENDOR of free radicals in X-irradiated barbituric acid
✍ Scribed by Jürgen Hüttermann; Gunnar Schmidt; Dieter Weymann
- Publisher
- Elsevier Science
- Year
- 1976
- Weight
- 864 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0022-2364
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## Abstract The decay of free radicals in irradiated PMMA subjected to high pressures has been studied by the method of ESR. The rate constants and activation energies has been determined for the decay of free radicals at the pressures of 5000 and 10,000 atm over the temperature range of 100–170°C.
Polyamide 6 was irradiated with gamma rays in air at room temperature with a radiation dose of 17 kGy. The arising composite spectrum indicates the presence of two types of free radicals. The ratio of spectral lines was measured for the time period of 45 days. As the rate constants of decay of indiv