Abstract
ABSTRACTConductivity measurements of sodium polystyrene sulfonate (NaPSS) were carried out in aqueous solutions of 1-hexyl-3-methylimidazolium bromide ([HMIm]Br) at three different temperatures. The scaling theory is used for the description of electrical conductance of polyelectrolytes. The fraction of uncondensed counterions is decreased by increasing temperature and concentration of [HMIm]Br. Conductivity measurements of ([HMIm]Br were accomplished in aqueous solutions of sodium polystyrene sulfonate. Data analysis was performed by the Quint–Viallard conductivity equation and low concentration chemical model. Molar conductivity of [HMIm]Br in aqueous solutions of NaPSS was increased with increasing temperature. The values of activation energy for viscous flow are higher than the values of activation enthalpy of charge transport; therefore, it can be concluded that in addition of ion transfer, the formation and breaking hydrogen has a portion in charge transfer. The results of Quantum chemical calculations confirm the existence of hydrogen bonding between [HMIm]+ and [PSS]–.
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