Abstract: The crosslinked blends of epoxy resin(ER) and poly(ethylene oxide) (PEO) in variouscomponent ratio with different molecular weight were investigated by WAXD, SAXS, DSCand SEM methods. It is found that the crystalline blends of ER/PEO were gradually chan-ged into amorphous and the coherent lengthes were also reduced when ER content was increa-sed The crystal of ER/PEO blend belongs to monoclinic, that of ER/PEO-NaSCN triclinic.The crystallinity of ER/PEO-NaSCN reduces,but its long period increases in comparison withuncomplexed ER/PEO. Increasing ER content results in the increase of noncrystalline zoneand long period, as well as the reduction of crystalline lamella.

Key words: Epoxy resin/Poly (ethylene oxide) crosslinked blend, Complex, Aggregate state of Polymer, Sotid electrolyte