A study of the polymer electrolyte system containing poly(ethylene oxide), P(EO), with lead perchlorate is presented. The phase diagram, examined over a Pb(ClO4)2 concentration of 0-0.24 mol% by means of differential scanning calorimetry, thermomicroscopy, thermogravimetric analysis, is of the eutectic type. A polymer-salt compound is formed (x≈0.09), which melts incongruently at T∼420 K. The ionic conductivity in the elastomeric phase reaches 10-4Ω-1. The dielectric relaxation technique is used to investigate the relaxation phenomena at low temperatures, below the glass transition. The results are compared with those previously obtained on P(EO)-based systems containing different perchlorates and other Pb salts.
Ferloni, P., Mustarelli, P., Saraswat, A., Chiodelli, G., Magistris, A. (1994). Thermal and Transport-properties In the Polymer Electrolyte System P(eo)(n)-pb(clo4)(2). SOLID STATE IONICS, 72(Part 2), 135-139 [10.1016/0167-2738(94)90137-6].
Thermal and Transport-properties In the Polymer Electrolyte System P(eo)(n)-pb(clo4)(2)
Mustarelli, P;
1994
Abstract
A study of the polymer electrolyte system containing poly(ethylene oxide), P(EO), with lead perchlorate is presented. The phase diagram, examined over a Pb(ClO4)2 concentration of 0-0.24 mol% by means of differential scanning calorimetry, thermomicroscopy, thermogravimetric analysis, is of the eutectic type. A polymer-salt compound is formed (x≈0.09), which melts incongruently at T∼420 K. The ionic conductivity in the elastomeric phase reaches 10-4Ω-1. The dielectric relaxation technique is used to investigate the relaxation phenomena at low temperatures, below the glass transition. The results are compared with those previously obtained on P(EO)-based systems containing different perchlorates and other Pb salts.
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