ISSN:
0959-8103
Schlagwort(e):
gel electrolyte
;
polytriethylene glycol dimethacrylate
;
ion solvation
;
ion association
;
molal conductance
;
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Maschinenbau
,
Physik
Notizen:
Using a molal conductance method, ion solvation and ion association in polytriethylene glycol dimethacrylate (PTREGD)-LiClO4 gel electrolytes with amorphous ethylene oxide-co-propylene oxide (EO-co-PO, M̄n = 1750) as the plasticizer were investigated. It was found that the fraction of solute existing as single ions (αi) and ion pairs (αp) decreases, while that of triple ions (αt) increases linearly with increasing salt concentration. The dependence of these fractions on molecular weight of plasticizer was also examined. It was shown that αi and αt increase and αp decreases with increasing molecular weight. The result of temperature dependence of these fractions was very interesting: when the temperature is lower than 55°C, αi increases while αp and αt decrease with increasing temperature; however, when the temperature is higher than 55°C, the reverse is true.
Zusätzliches Material:
4 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/pi.1996.210410312
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