Macromolecular and morphological evolution of hydrophilic polyelectrolyte with N, N-dimethylformamide + water

Abstract

ABSTRACTThis work aims to establish the influence of the hydrophobic nature of the skeleton on the structure and dynamic properties of polyelectrolytes. Results of comprehensive temperature (T) studies on viscosity of solutions of poly-(sodium styrene sulphonate) (PSSNa) in N, N-dimethylformamide + water (DMF/W) are presented. The reduced dynamic viscosity–temperature relationship has been performed in the Arrhenius temperature domain. The intrinsic dynamic viscosities, the Huggins constant of dynamic viscosity and the indices for chain flexibility and molecule conformation were calculated and studied. The dynamic reduced viscosity–activation energy relationship is established as follows:ηred, exp = ηred) n.arr(E[η]/R) + ηred) arr(E[η]/R). The functions, ηred) n.arr (E [η]/R) represent the non-Arrhenius behaviour of the system and the term of ηred) arr (E [η]/R) is the behaviour of Arrhenius interactions in the mixed . We have also shown that the Huggins constant can be the sum of the Huggins Arrhenius constant (kη, H arr) and the Huggins non-Arrhenius constant (kη, H n.arr).