Abstract: Some ethoxy polyethylene glycol monomethacrylate macromers containing small amount of dimethacrylate were synthesized by "Macromonomer Technique". They crosslinked on heating and polyethylene oxide networks were obtained. The complexes of the networks with sodium thiocyanate had a higher conductivity than that of corresconding linear polyethylene oxides by two orders (10^-5Ω^-1cm^-1/298K). IR spectra of the network systems showed strong signals of amorphous construction. Effects of solvents and salt concentration on the crystallinity of the complexes were observed. can be obtained. By selecting suitable solvent and salt concentration high amorphous complexes with the highest conductivity and good hot-press processibility