V. Dinoto, A NOVEL POLYMER ELECTROLYTE BASED ON OLIGO(ETHYLENE GLYCOL)600, K2PDCL4, AND K3FE(CN)(6), Journal of materials research, 12(12), 1997, pp. 3393-3403
New electrolytic systems were prepared by reacting K3Fe(CN)(6) and K2P
dCl4 in a mixture of water and poly(ethylene glycol) 600 (PEG). The re
action occurs in two steps: first a gel is formed, which then shrinks,
releasing the solvent. The product thus obtained has the consistency
of a smooth, solid plastic paste and is very stable. The influence of
the reaction mixture on the structure, morphology, and conductivity of
the products was investigated carrying out three preparations (I, II,
III) at increasing ratio PEG 600/H2O. By FT-IR studies and analytical
data it was concluded that these materials are inorganic-organic netw
orks containing CN bridges between Fe and Pd atoms and PEG 600 bridges
between Pd atoms. Scanning electron microscopy studies revealed that
the morphology of polymers I, II, and III is significantly influenced
by the conditions of the synthesis. Conductivity measurements made at
different temperatures showed that polymers I, II, and III conduct ion
ically. The conductivity of polymer I, which was synthesized with the
highest water/PEG 600 ratio, is on the order of 1.4.10(-3) S/cm at 25
degrees C.