Abstract
The influence of phenyl and other aromatic groups on radiation crosslinking of polydimethylsiloxane and its mechanical blends and copolymers with polydiphenylsiloxane and polyphenylsilsesquioxane, radiation-induced gas evolution, and radical generation in these systems were considered. It was shown that radiation-chemical yields of crosslinking and gas evolution follow a simple exponential law over a wide concentration range of phenyl groups (at their content above 1 mol %). A similar dependence was observed for the radiation-chemical yield of hydrogen in ethylene copolymers with styrene. For the crosslinking processes, it was proved that the effect of phenyl groups is identical in the mechanical blends and copolymers of polyorganosiloxanes. The effect of retardation of radiation-chemical processes by phenyl groups was shown to be independent of whether one or two groups is linked to a silicon atom, it is their total amount that matters.
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References
Burton, M.,J. Phys. Colloid Chem., 1948, vol. 52, p. 564.
Swallow, A.J.,Radiation Chemistry of Organic Compounds, London: Pergamon, 1960. Translated under the titleRadiatsionnaya khimiya organicheskikh soedinenii, Moscow: Inostrannaya Literatura, 1963.
Pikaev, A.K.,Sovremennaya radiatsionnaya khimiya. Radioliz gazov i zhidkostei (Modern Radiation Chemistry: Radiolyses of Gases and Liquids), Moscow: Nauka, 1986.
Radiatsionnaya stoikost’ organicheskikh materialov. Spravochnik, Milinchuk, V.K. and Tupikov, V.I., Eds., Moscow: Energoatomizdat, 1986. Translated under the titleOrganic Radiation Chemistry Handbook, New York: Ellis Horwood, 1990.
Ivanov, V.S.,Radiatsionnaya khimiya polimerov (Radiation Chemistry of Polymers), Leningrad: Khimiya, 1988.
Milinchuk, V.K., Klinshpont, E.R., and Tupikov, V.I.,Osnovy radiatsionnoi stoikosti organicheskikh materialov (Principles of Radiation Resistance of Organic Materials), Moscow: Energoatomizdat, 1994.
Charlesby, A.,Atomic Radiation and Polymers, Oxford: Pergamon, 1960. Translated under the titleYadernye izlucheniya i polimery, Moscow: Inostrannaya Literatura, 1962.
Miller, A.A.,J. Am. Chem. Soc., 1961, vol. 83, no. 1, p. 31.
Delides, C.G.,Radiat. Phys. Chem., 1980, vol. 16, p. 345.
Miller, A.A.,J. Am. Chem. Soc., 1960, vol. 82, p. 3519.
Pankratova, L.N. and Zheleznikova, M.V.,Zh. Fiz. Khim., 1978, vol. 52, no. 9, p. 2411.
Miller, A.A.,Ind. Econ. Prod. Res. Dev., 1964, vol. 3, p. 252.
Pankratova, L.N., Zheleznikova, M.V., Goryachev, A.I., Severnyi, V.V., Varlamova, N.V., and Rogal’, E.A.,Khim. Vys. Energ., 1979, vol. 13, no. 6, p. 501.
Lyashevich, V.V., Pankratova, L.N., Panov, O.Yu., Klinshpont, E.R., Rabkina, A.Yu., and Zavin, B.G.,Khim. Vys. Energ., 1991, vol. 25, no. 3, p. 238.
Iskakov, L.I.,Radiatsionnoe gazovydelenie polimernykh materialov (Radiation Gas Evolution from Polymer Materials), Moscow: NIITEKhIM, 1979.
Lyashevich, V.V., Trofimova, N.I., Aleksashina, O.F., Shigorin, V.S., Sunekants, T.I., Oleinik, N.V., and Severnyi, V.V.,Vysokomol. Soedin., Ser. A, 1988, vol. 30, no. 9, p. 1902.
Klinshpont, E.R. and Pankratova, L.N.,Vysokomol. Soedin., Ser. B, 1988, vol. 30, no. 2, p. 105.
Pankratova, L.N., Panov, O.Yu., Fel’dman, V.I., Belopushkin, S.I., and Belevskii, V.N.,Vysokomol. Soedin., Ser. A, 1994, vol. 37, no. 4, p. 600.
Bugaenko, L.T., Byakov, V.M., and Lebedev, Ya.S.,Khim. Vys. Energ., 1972, vol. 6, no. 4, p. 327.
Pankratova, L.N., Mazurina, N.V., Bugaenko, L.T., Rabkina, A.Yu., Kuteinikova, L.I., and Zavin, B.G.,Khim. Vys. Energ., 1998, vol. 32, no. 5, p. 338 [High Energy Chem. (Engl. transl.), 1998, vol. 32, no. 5, p. 301].
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Pankratova, L.N., Bugaenko, L.T. & Revina, A.A. Effect of aromatic protectors on the radiolysis of polyorganosiloxanes. High Energy Chem 34, 16–22 (2000). https://doi.org/10.1007/BF02761782
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DOI: https://doi.org/10.1007/BF02761782