The free radicals produced by ␥ irradiation in the polymer network are formed with ionizing radiation. The decay rates of radicals in the temperature range were used to estimate the diffusion coefficient of oxygen into polymeric spheres by an electron spin resonance (ESR) technique. The ESR results
Effect of γ-irradiation dose for the oxygen diffusion into polymers
✍ Scribed by H. Yilmaz Kaptan; Olgun Güven
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 130 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
Electron spin resonance (ESR) spectroscopy has been used for the measurement of the diffusion coefficient of oxygen into polymeric spheres. It has been shown that there is an inverse dependency between the irradiation dose and the oxygen diffusion coefficient (D). The free-radical concentration (R 0 ) produced in the polymer depends on the dose of the g rays. In this study, we tried to find a relationship between the oxygen diffusion coefficient and the free-radical concentration produced in the polymer during the irradiation.
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