Enhanced ion mobility in aluminosilicate/polysiloxane network polyelectrolytes
A new series of polysiloxane-based single-ion conductors was prepared. These contain solvating oligoether sidechains and covalently linked aluminosilicate or alkoxy/siloxy-aluminate anions attached to the polysiloxane backbone. Of these two systems, the polymers containing aluminosilicate [(SiO){sub 4}Al]{sup {minus}} anions show higher room temperature conductivities (10{sup {minus}6} S/cm) than those with alkoxy/siloxyaluminate [(SiO){sub 2}(CH{sub 2}O){sub 2}Al]{sup {minus}} anions (10{sup {minus}7} S/cm). The incorporation of longer covalent tethers between the alkoxy/siloxyaluminate anion and the polymer backbone results in enhanced room temperature conductivities at high ion loadings. Differential scanning calorimetry data provide a rationale for the high conductivity.
- Research Organization:
- Northwestern Univ., Evanston, IL (US)
- Sponsoring Organization:
- Office of Naval Research; US Department of the Army
- OSTI ID:
- 20086875
- Country of Publication:
- United States
- Language:
- English
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