A correlation between formation of free radicals and double bonds conversion during photopolymerization by EPR and NIR study and complex systems theory approach

Editorial Board PCSS Journal; T.S. Kavetskyy; O.I. Matskiv; O. Šauša; H. Švajdlenková; V.M. Soloviev; A.O. Bielinskyi; A.V. Tuzhykov; J. Ostrauskaite; A.E. Kiv

doi:10.15330/pcss.27.2.299-309

Authors

T.S. Kavetskyy Drohobych Ivan Franko State Pedagogical University, Drohobych, Ukraine; Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovakia; South Ukrainian National Pedagogical University named after K.D. Ushynsky, Odesa, Ukraine
O.I. Matskiv Drohobych Ivan Franko State Pedagogical University, Drohobych, Ukraine
O. Šauša Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovakia; Department of Nuclear Chemistry, FNS, Comenius University, Bratislava, Slovakia
H. Švajdlenková Department of Nuclear Chemistry, FNS, Comenius University, Bratislava, Slovakia; Polymer Institute, Slovak Academy of Sciences, Bratislava, Slovakia
V.M. Soloviev South Ukrainian National Pedagogical University named after K.D. Ushynsky, Odesa, Ukraine; Kyiv National Economic University named after Vadym Hetman, Kyiv, Ukraine
A.O. Bielinskyi State University of Economics and Technology, Kryvyi Rih, Ukraine; Kyiv National Economic University named after Vadym Hetman, Kyiv, Ukraine
A.V. Tuzhykov South Ukrainian National Pedagogical University named after K.D. Ushynsky, Odesa, Ukraine
J. Ostrauskaite Kaunas University of Technology, Kaunas, Lithuania
A.E. Kiv South Ukrainian National Pedagogical University named after K.D. Ushynsky, Odesa, Ukraine; Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel

DOI:

https://doi.org/10.15330/pcss.27.2.299-309

Keywords:

photopolymerization, photodegradation, UV light, irradiation, polymers, composite, EPR spectroscopy, IR spectroscopy, structure, properties, complex systems theory

Abstract

The photopolymerization of acrylated epoxidized soybean oil (AESO) and vanillin dimethacrylate (VDM) with a photoinitiator (2,2-dimethoxy-2-phenylacetophenone) (DMPA) is studied by using electron paramagnetic resonance (EPR) and near-infrared (NIR) spectroscopy methods. A correlation between a concentration of free radicals deduced from EPR spectra and double bond conversion peak area deduced from NIR spectra as a function of UV-irradiation time for the investigated polymer composite is detected. The observed correlation is agreed well with the prediction of photopolymerization and photodegradation phenomena within a complex systems theory approach.

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