Polyacrylamide based composite polymeric electrolytes
1995; Elsevier BV; Volume: 40; Issue: 13-14 Linguagem: Inglês
10.1016/0013-4686(95)00206-t
ISSN1873-3859
AutoresW. Wieczorek, K. Such, Zbigniew Florjańczyk, J. R. Stevens,
Tópico(s)Material Dynamics and Properties
ResumoIon transport mechanisms in oxymethylene linked poly(ethylene oxide)-poly(N,N-dimethyl-acrylamide)-LiClO4 composite polymeric electrolytes have been studied. It has been found that the addition of poly(N,N-dimethyl-acrylamide) fillers increases ambient and sub-ambient temperature conductivities by about 1–2 orders of magnitude in comparison with the pristine oxymethylene linked poly(ethylene oxide)-LiClO4 electrolyte. DSC and FTIR investigations demonstrate strong interactions between the poly(N.N-dimethyl-acrylamide) filler added and LiClO4 leading to the formation of different molecular complexes. The presence of a highly flexible amorphous polyether phase evident from DSC measurements seems to be responsible for the conductivity enhancement.
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