Abstract
Low-temperature (77 K) γ-radiolysis of aqueous solutions of poly(ethylene oxide) was studied by ESR spectroscopy. Trapped electrons, hydroxyl radicals, and -CH2-ĊH-O- radicals were identified as principal paramagnetic products of radiolysis. It was shown that an increase in the polymer concentration in solution led to a growth in number of trapped electrons and -CH2-ĊH-O- macroradicals. The decay of hydroxyl radicals occurring at 110–115 K was accompanied by the formation of -CH2-ĊH-O- macroradicals and partial recombination of hydroxyl radicals. Action of visible light resulted in virtually quantitative transformation of trapped electrons into -CH2-ĊH-O- macroradicals. The radiation-chemical yields of the species trapped at 77 K were estimated and the scheme of radiation-induced chemical processes was suggested.
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REFERENCES
Kofinas, P., Athanassiou, V., and Merrill, E.W., Biomaterials, 1996, vol. 17, p. 1547.
Yoshii, F., Zhanshan, Y., Isobe, K., Shinozaki, K., and Makuuchi, K., Radiat. Phys. Chem., 1999, vol. 55, p. 133.
Belcheva, N., Tsvetanov, C., and Smid, J., J. Polym. Sci., Part A: Polym. Chem., 1997, vol. 35, p. 1819.
Keys, K.B., Andreopoulos, F.M., and Peppas, N.A., Macromolecules, 1998, vol. 31, p. 8149.
Bhalerao, V.S., Vrghese, S., Lele, A.K., and Badiger, M.V., Polymer, 1998, vol. 39, p. 2255.
Zakurdaeva, O.A., Nesterov, S.V., and Feldman, V.I., J. Radioanal. Nucl. Chem., 2004, vol. 261, no.2, p. 245.
Zainuddin, Albinska J., Ulanski P., and Rosiak J.M., J.Radioanal. Nucl. Chem., 2002, vol. 253, p. 339.
Ulanski, P., Rosiak, J.M., and Zainuddin, Radiat. Phys. Chem., 1995, vol. 46, nos.4–6, p. 917.
Ulanski, P., Rosiak, J.M., and Zainuddin, Radiat. Phys. Chem., 1995, vol. 46, nos.4–6, p. 913.
Puntezhis, S.A., Ershov, B.G., and Pikaev, A.K., Khim. Vys. Energ., 1970, vol. 4, no.2, p. 187.
Thryion, F.C. and Baijal, M.D., J. Polym. Sci., 1968, vol. 6, p. 505.
Baranova, I.A., Belevskii, V.N., Belopushkin, S.I., and Feldman, V.I., Khim. Vys. Energ., 1991, vol. 25, no.6, p. 536.
Baranova, I.A., Ionic Processes in Radiolysis of Ethers, Cand. Sci. (Chem.) Dissertation, Moscow: Moscow State Univ., 1988.
Pshezhetskii, S.Ya., Kotov, A.G., Milinchuk, V.K., Roginskii, V.A., and Tupikov, V.I., EPR svobodnykh radikalov v radiatsionnoi khimii (EPR of Free Radicals in Radiation Chemistry), Moscow: Khimiya, 1972.
Plonka, A., Szajdzinska-Pietek, E., and Kroh, J., Radiat. Phys. Chem., 1984, vol. 23, no.5, p. 583.
Puntezhis, S.A., Ershov, B.G., and Pikaev, A.K., Dokl. Akad. Nauk SSSR, 1971, vol. 196, no.3, p. 641.
Baranova, I.A., Feldman, V.I., and Belevskii, V.N., Khim. Vys. Energ., 1986, vol. 20, no.5, p. 387.
Pikaev, A.K. and Kabakchi, S.A., Reaktsionnaya sposobnost’ pervichnykh produktov radioliza vody. Spravochnik (Reactivity of Primary Water Radiolysis Products: A Handbook), Moscow: Energoizdat, 1982.
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Translated from Khimiya Vysokikh Energii, Vol. 39, No. 4, 2005, pp. 243–249.
Original Russian Text Copyright © 2005 by Zakurdaeva, Nesterov, Feldman.
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Zakurdaeva, O.A., Nesterov, S.V. & Feldman, V.I. Radiolysis of Aqueous Solutions of Poly(ethylene oxide) at 77 K. High Energy Chem 39, 201–206 (2005). https://doi.org/10.1007/s10733-005-0042-1
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DOI: https://doi.org/10.1007/s10733-005-0042-1