| 含氟烷基氧杂磺酸钾盐快速电子辐照自由基衰变 |
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| 引用本文： | 赵祥臻,李宗珍.含氟烷基氧杂磺酸钾盐快速电子辐照自由基衰变[J].有机化学,1982(4). |
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| 作者姓名： | 赵祥臻 李宗珍 |
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| 作者单位： | 中国科学院上海有机化学研究所，中国科学院上海有机化学研究所 |
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| 摘 要： | 本文报导了用电子自旋共振谱研究一些含氟烷基氧杂磺酸钾盐经快速电子辐照后自由基衰变的情况。真空辐照和空气中辐照的剂量均为7.2×10~6rad。辐照后的全氟和多氟化合物于室温下放置2～12天后,其自由基浓度为10~(18)spin No./g,放置88天后,自由基浓度与前相同,基本无变化。而十二烷基磺酸钠辐照后生成的自由基,在室温下却很快衰变。辐照后生成的自由基具有反应活性,可以引发苯乙烯的聚合反应。
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| 关 键 词： | 自由基 衰变 电子自旋共振 γ-射线 辐照 氟化物 |
Decay of Free Radicals in Potassium Oxa-fluoroalkane Sulfonates after Irradiation with Fast Electrons |
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| Zhao Xiangzhen,Li Zhongzhen.Decay of Free Radicals in Potassium Oxa-fluoroalkane Sulfonates after Irradiation with Fast Electrons[J].Chinese Journal of Organic Chemistry,1982(4). |
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| Authors: | Zhao Xiangzhen Li Zhongzhen |
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| Institution: | Zhao Xiangzhen,Li Zhongzhen Shanghai Institute of Organic Chemistry,Academia Sinica |
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| Abstract: | ESR was used to investigate the decay of free radicals in potassiumoxa-fluoroalkane sulfonate after irradiation with fast electrons.The samples wereirradiated in air and in vacuum with a dose of 7.2X10~6 rad,and then placed at roomtemperature for 2-12 days,the concentration of free radicals was formed to be 10~(18)spin No./g.When it was allowed to stand at room temperature for 88 days,the con-centration of free radicals remained unchanged.On the contrary,the free radicalsin sodium dodecane sulfonate after irradiation decayed quickly.After radiation,free radicals in potassium oxa-fluoroalkane sulfonates were found to have chemicalactivity to initiate the polymerization of styrene. |
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