We used attenuated total reflectance/Fourier-transform IR spectroscopy (ATR/FTIR) combined with gravimetric analysis to study photoinduced graft polymerization of acrylic acid onto polyethylene films from the monomer + photoinitiator liquid phase. Grafting was carried out at a temperature of 25°C, initiator concentration 5%, and reaction time t r = 5–90 sec. It was established that as the reaction time increases, the grafting process first occurs in the surface region of the film, and then (for t r > 20 sec) propagates into the interior volume of the film and growth of the grafted chains stops in the surface region.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 76, No. 6, pp. 950–953, November–December, 2009.
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Tretinnikov, O.N. Analysis of photoinduced graft polymerization of acrylic acid onto polyethylene films by attenuated total reflectance IR spectroscopy. J Appl Spectrosc 76, 898–901 (2009). https://doi.org/10.1007/s10812-010-9268-x
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DOI: https://doi.org/10.1007/s10812-010-9268-x