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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。
In this paper, the electron spin resonance (NMR) spectroscopy was used to study the decay of free radicals of some fluoroalkyl oxysulfonic acid potassium salts after rapid electron irradiation. The dose of irradiation in vacuum and in air is 7.2 × 10 ~ 6rad. After irradiation, the perfluoro and polyfluoride compounds were allowed to stand at room temperature for 2 to 12 days and their free radical concentration was 10 to (18) spin No./g. After being allowed to stand for 88 days, the free radical concentration was the same as that of the previous one, with almost no change. Radicals generated after irradiation with sodium dodecyl sulfate decay rapidly at room temperature. Radicals generated after irradiation are reactive and can initiate the polymerization of styrene.