ANALYSIS OF THE COMPATIBILITY AND MACROMOLECULAR SEGMENTAL MOVEMENT OF INTERPENETRATING POLYMER NETWORKS BASED ON POLYACRYLATE AND EPOXY

lnterpenetrating polymer networks, IPNs, of polyacrylate and epoxy wer e synthesized and characterized by means of dynamic mechanical propert ies. The compatibility between polyacrylate and epoxy was discussed, a nd the activation entropy of the network chain's motion was calculated in terms of Read's method by Me temperature dependence of the dynamic loss modulus point of view. The molecular miscibility and the mutual entanglements between the two networks were discussed. Supramolecular structure compatibility is one of the important factors causing the in ward shift of the glass transition temperature, T-g, of the IPNs syste ms. That activation entropy, Delta S-not equal, of the systems decreas ed after the formation of the interpenetrating network structure and s uggests that more entanglement chains existed in the IPNs system and r estricted the motion of the network chains.