Gadolinium- and lead-containing functional terpolymers for low energy X-ray protection

Yu-Juan Zhang; Xin-Tao Guo; Chun-Hong Wang; Xiang An Lu; De-Feng Wu; Ming Zhang

doi:https://doi.org/10.1016/j.net.2021.06.021

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자료유형: 학술저널

저자정보: Yu-Juan Zhang (School of Chemistry and Chemical Engineering, Yangzhou University) Xin-Tao Guo (Department of Materials Research, AVIC Manufacturing Technology Institute) Chun-Hong Wang (School of Chemistry and Chemical Engineering, Yangzhou University) Xiang An Lu (Guangling College of Yangzhou University) De-Feng Wu (School of Chemistry and Chemical Engineering, Yangzhou University) Ming Zhang (School of Chemistry and Chemical Engineering, Yangzhou University)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제12호

발행연도: 2021.12

수록면: 4,130 - 4,136 (7page)

DOI: https://doi.org/10.1016/j.net.2021.06.021

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By polymerization of gadolinium methacrylate (Gd (MAA)3), lead methacrylate (Pb(MAA)2) and methylmethacrylate (MMA), Gd and Pb were chemically bonded into polymers. The X-ray shielding performance was evaluated by Monte Carlo simulation method, and the results showed that the more metalfunctional organic monomer, the better the shielding performance of terpolymers. When the X-rayenergy is 65 keV, Gd (MAA)3-containing polymers have better shielding performance than Pb(MAA)2-containing polymers. Gd could compensate for the weak absorption region of Pb. Therefore, polymerscontaining both Gd and Pb enhanced shielding efficiency against X-ray in various low-energy ranges. Forobtaining terpolymers with uniform monomer compositions, the relationship between the monomercomposition of the terpolymers and the conversion level was optimized by calculating the reactivityratios. The value of reactivity ratios of r (Gd (MAA)3/Pb(MAA)2), r (Pb(MAA)2/Gd (MAA)3), r (Gd (MAA)3/MMA), r (MMA/Gd (MAA)3), r (Pb(MAA)2/MMA) and r (MMA/Pb(MAA)2) was 0.483, 0.004, 0.338, 2.508,0.255, 0.029. The terpolymers with uniform monomer composition could be obtained by controlling themonomer compositions or conversion levels. The results can provide new radiation protection materialsand contribute to the improvement in nuclear safety.

#Metal-containing terpolymers #Mass attenuation coefficient #Parameter estimation #Ternary reactivity ratios

참고문헌 (40)

참고문헌 신청

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S. Nambiar / 2012 / Polymer-composite materials for radiation protection / ACS Appl. Mater. Interfaces 4(11):5717~5726

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S. Jayakumar / 2017 / Preparation, characterization and X-ray attenuation property of Gd2O3-based nanocomposites / Appl. Nanosci 7(8):919~931

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