Effect of reaction conditions on the structure of interpenetrating polymer networks. V. The influence of a high energy surface on curing of epoxy-allylic interpenetrating networks

By the methods of absorption IR-spectroscopy, IR-spectroscopy of total attenuated inner reflectance, TAIR, and pulsing NMR-spectroscopy, the effect of a high energy surface on the formation of epoxy-allylic interpenetrating polymer networks had been investigated. By polymerization of epoxy oligomer at the interface with solid and by formation of simultaneous IPN, where the second component is diallylic monomer, the solid effect manifests itself in total retardation of the conversion of reaction able groups. At the initial stages of the IPN formation, there is observed selective adsorption of epoxy oligomer at the interface. This effect leads to the diminishing the rate of opening of epoxy groups and to decreasing their conversion at the latest stages of curing.