The possibility of peroxy oligomer synthesis has been studied by three methods: telomerization of diepoxy derivatives of ethylene glycol or Bisphenol A using 1,2-epoxy-3-tert-butyl peroxypropane as telogen, modification of phenol-formaldehyde resins by 1,2-epoxy-3-tert-butyl peroxypropane and polycondensation of phenol containing –O–O– bonds with formaldehyde. The peroxy oligomers obtaining conditions have been established and 7 new oligomers with peroxy groups have been synthesized. The structures of synthesized oligomers have been verified by chemical and spectral methods.

The method of obtaining of epoxy-oligoester compositions based on ED-20 dyano epoxy resin in the presence of modified ED-20P epoxy resin was developed. The influence of amount of epoxy components and unsaturated MGPh-9 oligoester on structuring process of epoxy-oligoester blends was studied. The heating of such blends causes complete decomposition of labile peroxide groups and also subsequent polymerization of unsaturated oligoesters which, in the presence of ED-20P resin is included to the crosslinked structure of blend providing the derivation of epoxy-oligoesters with improved physical, mechanical and chemical properties.

The main physical-mechanical and thermophysical characteristics of composite materials based on epoxy resin ED-20 and peroxide resin ED-20P (modified with tert-butyl hydroperoxide ED-20 of a molecular weight 480) in the ratio of 30 mass parts of ED-20P to 70 mass parts of ED- 20 and unsaturated oligoester TGM-3 were researched. Butyl methacrylate was used as the active diluent of epoxy-oligoester mixtures. The polyethylene polyamine was used as hardener in a steochemical ratio. For the comparison we studied compositions which did not contain ED-20P resin. The advantage of compositions included ED-20P modified resin has been shown.