Radiolysis of aqueous DCH18C6 solutions at 77 K |
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Authors: | O A Zakurdaeva S V Nesterov V I Feldman |
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Institution: | (1) Enikolopov Institute of Synthetic Polymer Materials of RAS, ul. Profsoyuznaya, 70, Moscow, 117393, Russia;(2) Department of Chemistry, Moscow State University, Moscow, 119992, Russia |
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Abstract: | Low-temperature (77 K) γ- and X-ray radiolysis of aqueous DCH18C6 solutions was studied by ESR-spectroscopy. OH radicals, trapped electrons and macrocyclic
radicals -CH2-CH-O- resulting from H-atom abstraction from methylene groups of polyether ring were identified as predominant radiolysis
products. Increasing the crown ether concentration in aqueous solution leads to the growth of relative yields of the trapped
electron and macrocyclic radicals as well as the decrease of that of hydroxyl radical. Neither radical products of macrocycle
rupture nor H-atom abstraction from cyclohexane rings were observed. |
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Keywords: | |
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