| γ-辐照聚全氟乙丙烯的电子自旋共振研究 II: 真空中俘获自由基的自氧化过程 |
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| 引用本文： | 薛鸿庆,钱军.γ-辐照聚全氟乙丙烯的电子自旋共振研究 II: 真空中俘获自由基的自氧化过程[J].化学学报,1983,41(11):1038-1043. |
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| 作者姓名： | 薛鸿庆 钱军 |
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| 作者单位： | 上海市测试技术研究所;中国科学院上海原子核研究所 |
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| 摘 要： | Autooxidation processes of free radicals trapped in γ irradiated F46 copolymer in vacuum at room temperature were studied by means of ESR. It is shown that these processes are under the dual control of both the diffusion of oxygen and the total concentration of free radicals, and they are independent of the autooxidation reaction rate constant. In general, the diffusion constant calculated by simple diffusion equation is an apparent diffusion constant, it is a function of the total concentration of free radicals. Only when the total concentration of free radicals is low enough (in our case n
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| 关 键 词： | 氧化 反应动力学 浓度 扩散系数 游离基 电子自旋共振 全氟乙丙烯共聚物 γ辐射 |
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