Acrylate-based compositions with Irgacure 784 are widely used for photopolymerization. However, the inherent limitations of this method require subsequent heat treatment to eliminate residual monomers. In this work, a previously unconsidered thermally initiated polymerization of acrylates with Irgacure 784 was investigated. Polymerization was studied in an isoconversion mode with varying heating rates, the content of molecular oxygen in the reactor atmosphere, as well as with different contents of functional carbon particles - astralenes. The kinetic parameters of the process were determined using the Friedman method. It has been established that polymerization occurs at temperatures above 150 °C and is accompanied by destruction of the monomer. The effective activation energy of thermally initiated polymerization is 90–115 kJ/mol and is comparable to the energy of radical polymerization of acrylate esters. The addition of astralenes slightly inhibits polymerization kinetics but improves the properties of the material in concentrations up to 0.05
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