Abstract A comprehensive study of the rheological characterization aqueous solutions polyethylene oxide (PEO) with molecular mass 4 × 106, 5 and 8 106 g/mol, respectively, named (4 miDA), (5 (8 miDA) was conducted. large batch samples miDA PEO concentrations varying from 0.1% to 3%, representing range dilute very high viscous hydrated gels, were tested. Steady-state shear flow oscillatory measu...