Abstract
Irradiation of polyamide-6 (PA) with γ-rays reduces its resistance to subsequent IR laser radiation. The average rate of laser ablation of PA, preliminarily irradiated with γ-rays at a dose above ~300 kGy, is almost dose-invariant and is 30% higher than that of the initial unirradiated polymer. The pattern of the dose dependence of the laser ablation rate for the samples pre-irradiated with a dose of 3.24 MGy at a dose rate of 4.2 Gy/s is mixed in character, varying from the shape characteristic of the initial polymer at the initial stage to the shape typical of the maximum radiation dose in the stationary laser ablation mode. One of the products of PA laser ablation is a dispersed polymer, consisting of nano- to micrometer-sized particles, the size range of these particles shifting toward smaller values with an increase in the γ radiation dose, a trend that is explained by a decrease in melt viscosity.
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REFERENCES
Urech, L. and Lippert, T., Photochemistry and Photophysics of Polymer Materials, Allen, N.S., Ed., New York: Wiley, 2010, ch. 14.
Tolstopyatov, E.M., Polim.Mater. Tekhnol., 2016, vol. 2, no. 1, p. 6.
Tolstopyatov, E.M., J. Phys. D: Appl. Phys., 2005, vol. 38, p. 1993.
Grakovich, P.N., Ivanov, L.F., Kalinin, L.A., Ryabchenko, I.L., Tolstopyatov, E.M., and Krasovskii, A.M., Russ. J. Gen. Chem., 2009, vol. 79, no. 3, p. 626.
Ol’khov, Yu.A., Allayarov, S.R., Tolstopyatov, E.M., Grakovich, P.N., Kalinin, L.A., Dobrovol’skii, Yu.A., and Dixon, D.A., High Energy Chem., 2010, vol. 44, no. 1, p. 63.
Tolstopyatov, E.M., Grakovich, P.N., Rakhmanov, S.K., Vasil’kov, A.Yu., and Nikitin, L.N., Inorg. Mater.: Appl. Res., 2012, vol. 3, no. 5, p. 425.
Golodkov, O.N., Ol’khov, Yu.A., Allayarov, S.R., Grakovich, P.N., Belov, G.P., Ivanov, L.F., Kalinin, L.A., and Dikson, D.A., High Energy Chem., 2013, vol. 47, no. 3, p. 77.
Allayarov, S.R., Kalinin, L.A., Tolstopyatov, E.M., Grakovich, P.N., Ivanov, L.F., and Dixon, D.A., J. Russ. Laser Res., 2017, vol. 38, no. 4, p. 364.
Allayarov, S.R., Tolstopyatov, E.M., Dixon, D.A., Kalinin, L.A., Grakovich, P.N., Ivanov, L.F., Belov, G.P., and Golodkov, O.N., J. Russ. Laser Res., 2017, vol. 38, no. 4, p. 369.
Frolov, I.A., Allayarov, S.R., Kalinin, L.A., Dixon, D.A., Tolstopyatov, E.M., Grakovich, P.N., and Ivanov, L.F., J. Russ. Laser Res., 2018, vol. 39, no. 1, p. 98.
Tolstopyatov, E.M., Ivanov, L.F., Grakovich, P.N., and Krasovsky, A.M., Proc. SPIE, 1998, vol. 3343, no. 2, p. 1010.
Bogdanova, Yu.G., Dolzhikova, V.D., Mazhuga, A.G., Shapagin, A.V., and Chalykh, A.E., Izv. Akad. Nauk, Ser. Khim., 2010, no. 7, p. 1313.
Cefalas, A.C., Vassilopoulos, N., Sarantopoulou, E., Kollia, Z., and Skordouli, C., Appl. Phys. A, 2000, vol. 70, no. 1, p. 21.
Socrates, G., Infrared and Raman Characteristic Group Frequencies: Tables and Charts, 3rd ed., Chichester: Wiley, 2004.
Tarasevich, B.N., IK spektry osnovnykh klassov organicheskikh soedinenii. Spravochnye materialy (IR Spectra of Main Classes of Organic Compounds: A Handbook), Moscow: Izd. MGU, 2012.
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This work was carried out within the framework of State Assignment, theme no. 0089-2019-0008, using the equipment of the Analytical Center for Shared Use at the Institute of Problems of Chemical Physics, Russian Academy of Sciences, and supported in part under the Belarus State Program of Scientific Research “Polymer Materials and Technologies,” task nos. 6.04 and 6.67.
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Frolov, I.A., Allayarov, S.R., Kalinin, L.A. et al. Infrared Laser Ablation of Gamma-Irradiated Polyamide-6. High Energy Chem 53, 459–465 (2019). https://doi.org/10.1134/S0018143919060067
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DOI: https://doi.org/10.1134/S0018143919060067