Formation of the microstructure and strength properties of oligoester acrylate polymers

Specific features of the formation of the microstructure of crosslinked oligoester acrylate polymers have been investigated, using the method of paramagnetic probe sorption proposed in this paper. A conclusion is reached that the polymeric material is essentially microheterogeneous and represents a system of densely crosslinked formations (grains) localized by sparsely crosslinked defective phase. It is shown that the strength properties of microheterogeneous crosslinked oligoester acrylate polymers are determined by the strength of the defective intergrain phase.