Abstract
The photoinduced grafting polymerization of acrylic acid onto the surface of a polypropylene film under the action of radiation with a wavelength of 365 nm and an intensity of 8–193 mW/cm2 emitted by high-power UV light-emitting diodes is studied. Grafting is performed from a thin layer of the aqueous solution of the monomer onto the surface containing a photoinitiator (benzophenone) deposited from a solution in a volatile solvent. The amount of graft polymer is determined with the use of ATR FTIR spectroscopy. At an intensity of UV radiation of 193 mW/cm2, the time of attainment of grafting-polymerization saturation is decreased by a factor of 6 relative to this time at an intensity of 8 mW/cm2, typical for emitters based on mercury lamps. The rate of grafting polymerization in the studied UV-radiation-intensity range grows in proportion to the square root of intensity.
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Original Russian Text © O.N. Tretinnikov, A.A. Gorbachev, E.V. Lutsenko, A.V. Danilchik, L.V. Shkrabatovskaya, L.K. Prikhodchenko, 2016, published in Vysokomolekulyarnye Soedineniya. Ser. B, 2016, Vol. 58, No. 3, pp. 231–237.
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Tretinnikov, O.N., Gorbachev, A.A., Lutsenko, E.V. et al. Photoinduced grafting polymerization onto the surface with the use of radiation of high-power ultraviolet light-emitting diodes. Polym. Sci. Ser. B 58, 278–283 (2016). https://doi.org/10.1134/S1560090416030155
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DOI: https://doi.org/10.1134/S1560090416030155