Temperature evolution and topology of associates in the medium of acrylic esters

Spin-probe EPR spectroscopy and high-precision thermomechanical measurement s were used to study the temperature evolution of associates and their topo logy in the acrylate or butyrate medium and in acrylate-butyrate binary sol utions with the concentration of each component varying From 0 to 100 mol % . The results obtained are interpreted on the basis of the model of pairwis e reversible intermolecular interactions between molecular functional group s, using the concept of physical network. The effect of the topology of the intermolecular interaction systems (i.e., physical networks) on some physi cal properties of esters is revealed. In particular, this factor affects th e structural transition temperatures registered by EPR spectroscopy and hig h-precision thermomechanical methods.