Examining features of radiation-induced damage to PADC observed using FT-IR analysis: Radiation tolerance of methine groups at three-way junctions
Examining features of radiation-induced damage to PADC observed using FT-IR analysis: Radiation tolerance of methine groups at three-way junctions
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DOI：
10.1016/j.radmeas.2021.106645
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发表时间：
2021-08-03
影响因子：
2
通讯作者：
Yamauchi, Tomoya
中科院分区：
文献类型：
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作者：
Kusumoto, Tamon;Kanasaki, Masato;Yamauchi, Tomoya
我们报告了聚（烯丙基二甘醇碳酸酯）（PADC），这是一种聚合物核径迹探测器，化学损伤的次甲基（CH）和亚甲基（CH 2）基团，在γ射线和重离子（C和Kr），使用傅里叶变换红外（FT-IR）分析。通过比较PADC在2700 - 3100 cm-1的红外光谱与PADC单体二甘醇双烯丙基碳酸酯（ADC）的红外光谱，我们发现2920 cm-1处的峰归属于三通连接处的次甲基。次甲基基团几乎没有受到伽马射线和重离子的破坏。至少两个轨道与单个PADC单元相互作用以破坏次甲基是必要的。
We report chemical damage to the methine (CH) and methylene (CH2) groups in poly(allyl diglycol carbonate) (PADC), which is a polymeric nuclear track detector, under gamma rays and heavy ions (C and Kr) using Fourier Transform Infrared (FT-IR) analysis. By comparing the IR spectrum of PADC from 2700 to 3100 cm-1 to that of diethyleneglycol bis allylcarbonate (ADC), which is a monomer of PADC, we found that the peak at 2920 cm-1 was assigned to the methine group at the three-way junction. The methine group was barely damaged by gamma rays and heavy ions. It is necessary that at least two tracks interact with a single PADC unit to damage the methine group.