Effect of Donor Number of Plasticizers on Conductivity
The effect of different plasticizers Propylene Carbonate (PC), 4 Dimethylformamide (DMF) and Dimethylacetamide (DMA) on conductivity behavior has been studied. It has been found -7 -4t hat...
Effect of plasticizer on electrical conductivity and cell
The plasticizer substantially reduces the brittleness of many polymers because the addition of even small quantities of the plasticizer markedly reduces the glass transition temperature, Tg, of the polymer. The electrical conductivity of a polymer electrolyte increases on the addition of plasticizer.
Influence of plasticizer on ionic conductivity of PVC-PBMA
Conductivity of 1.879 × 10 4 S cm 1 is exhibited by the polymer electrolyte consisting of 69% of plasticizer with appreciable thermal stability up to 523 K. Temperature and frequency dependence of conductivity is found to follow Vogel Tammann Fulcher relation and Jonscher power law, respectively.
EFFECT OF DONOR NUMBER OF PLASTICIZERS ON CONDUCTIVITY
4F. The effect of different plasticizers Propylene Carbonate (PC), Dimethylformamide (DMF) and Dimethylacetamide (DMA) on conductivity behavior has been studied. It has been found that, the conductivity of polymer electrolytes increases by three orders of magnitude from 10-7 to 10-4 S/cm with the addition of plasticizers.
Effect of nano-size fumed silica on ionic conductivity
The addition of plasticizer (DMA) increases the dielectric constant of the electrolyte, which results in the dissociation of ion aggregates and undissociated salt leading to an increase in the number of charge carriers ( n ), and hence, conductivity increases.
- Does donor number affect conductivity of polymer gel electrolytes?
- The effect of the donor number of the solvent on the conductivity behaviour of polymer gel electrolytes was studied by using a binary solvent mixture of EC and PC taken in equal volume ratio with donor number (15.75) lower than that of DMF but having higher dielectric constant value than DMF.
- Does Pan increase conductivity in gel electrolytes containing high donor number solvent?
- The addition of same amount of PAN to gel electrolytes containing high donor number solvent (DMF) results in an increase in conductivity by nearly two orders of magnitude, whereas in gel electrolytes containing low donor number solvent (EC/PC), the increase in conductivity is small and is by a factor only.
- How does carrier concentration affect conductivity of gel electrolytes?
- Thus conductivity depends upon two factors—carrier concentration and mobility. An increase in viscosity of the gel electrolytes with polymer addition shall result in a decrease in mobility and, hence, conductivity shall also decrease whereas an increase in carrier concentration shall result in an increase in conductivity.
