| Autor: |
Zaki, M. F., Elkalashy, Sh. I., Imam, N. G. |
| Zdroj: |
Polymer Science - Series B; Apr2022, Vol. 64 Issue 2, p142-154, 13p |
| Abstrakt: |
Herein, we addressed and monitored the chemical/physical induced changes in the cellulose nitrate (CN) upon γ-rays. The functionality of CN film over γ-irradiation process was explained in the light of the competition between cross-linking and scission processes. XRD, FTIR, UV/VIS and PL were used as techniques for imaging the interaction output between γ-rays and CN films. XRD patterns revealed that CN is semicrystalline in nature and the degree of crystallinity boosted as a function of irradiation dose up to 225 kGy. FTIR showed the general reduction trend in the intensity of different existent function groups with increasing the irradiation doses up to 225 kGy followed by an increase at 300 kGy. The spectroscopic results showed strong absorption in the UV-region and fluorescent only when irradiated by 45 and 125 kGy. The energy gap values calculated at different doses from UV/VIS and PL results are comparable and dose-dependent. Significant modifications in the structural and optical properties of cellulose nitrate films were acquired by gamma irradiation for the possibility to use in more potential technological applications. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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