| Enhancing Optical Clarity and Adhesion Properties of Poly(allyl diglycol carbonate) via Gamma Irradiation for Advanced Industrial Applications |
| Paper ID : 1109-ISCH |
| Authors |
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Ezzeldin John Kurkoum * Faculty of Science Helwan University |
| Abstract |
| This study presents a systematic investigation into the dose-dependent structural, optical, and surface energy modifications of polyallyl diglycol carbonate (CR-39) polymer induced by gamma radiation over a broad dose range of 100–700 kGy. Comprehensive characterization was performed using UV-Vis spectroscopy, and contact angle measurements to correlate radiation dose with physicochemical evolution. UV-Vis spectroscopy demonstrated a consistent narrowing of both direct and indirect optical band gaps—from 3.60 eV to 2.90 eV and 4.00 eV to 3.60 eV, respectively—attributed to the formation of defect states and increased conjugation due to structural reorganization. Wettability measurements using water, glycerol, and dimethyl-formamide showed a marked decrease in contact angles with increasing dose, signifying enhanced surface hydrophilicity driven by a rise in the polar component of surface energy. These findings establish clear quantitative relationships between gamma irradiation dose and key material properties of CR-39, providing critical insights for optimizing its performance in radiation detection, dosimetry, and other applications requiring tailored polymer response to ionizing radiation. |
| Keywords |
| CR-39 polymer; electron beam irradiation; FTIR; XRD; UV-Vis spectroscopy; surface free energy; band gap; oxidative degradation. |
| Status: Abstract Accepted (Poster Presentation) |