The radiolytic behavior and mechanism 0f calixarene crown ether UncIer-trraaiatlonThe radiolytic behavior and mechanism 0f calixarene crown ether UncIer-trraaiatlon

Bis（2-propyloxy）calix[4]crown-6 （BPC6） is an effective separation agent for cesium removing from spent nuclear fuel. The study on radiolytic behavior of BPC6 itself under ＇/-irradiation was required for evaluating its feasibility of practical application. It was found that BPC6 exhibited excellent r...

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Published in:中国科学通报：英文版 2013 (14), p.1663-1669
Main Author: AO YinYong PENG Jing ZHANGYouWei1 YUAN Li Yong YUChuHong
Format: Article
Language:English
Subjects:
冠醚
异丙氧基
机制
杯芳烃
烷基化反应
行为
辐射稳定性
酚羟基
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Summary:Bis（2-propyloxy）calix[4]crown-6 （BPC6） is an effective separation agent for cesium removing from spent nuclear fuel. The study on radiolytic behavior of BPC6 itself under ＇/-irradiation was required for evaluating its feasibility of practical application. It was found that BPC6 exhibited excellent radiation stability at dose less than 100 kGy. However, the isopropyl groups in BPC6 under- went oxidation and dealkylation to form carbonyl groups and phenolic hydroxyl groups at dose above 300 kGy, respectively. When the dose was more than 1000 kGy, the ring opening of crown ether structure of BPC6 resulted in the formation of phenolic hydroxyl groups as well. The formation of radiolytic products containing phenolic hydroxyl groups during the irradiation of BPC was confirmed by using FeC13 as a probe. Combining with the radiolytic behavior of two model chemicals （1-isopropoxybenzene and benzo-18-crown-6 ether）, the radiolytic behavior and mechanism of BPC6 under ＂/-irradiation was testified further.
ISSN:1001-6538
1861-9541