Effect on ionic conductivity with modification of polymethylmethacrylate in poly(ethylene oxide)-layered silicate nanocomposites (PLSN)

The polymer-layered silicate nanocomposites (PLSN) are prepared by the polymer (polyethylene oxide (PEO) or PEO-polymethylmethacrylate (PMMA)) melt intercalation in layered silicate. Experimental results show that polymers can intercalate in silicate interlayer by melt intercalation and thus ionic c...

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Bibliographic Details
Published in:Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2000-08, Vol.77 (1), p.15-18
Main Authors: Chen, W, Xu, Q, Yuan, R.Z
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Diffusion in solids
Exact sciences and technology
Ionic conductivity
Modification
Physics
Polymer-layered silicate nanocomposite
Self-diffusion and ionic conduction in nonmetals
Transport properties of condensed matter (nonelectronic)
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Summary:The polymer-layered silicate nanocomposites (PLSN) are prepared by the polymer (polyethylene oxide (PEO) or PEO-polymethylmethacrylate (PMMA)) melt intercalation in layered silicate. Experimental results show that polymers can intercalate in silicate interlayer by melt intercalation and thus ionic conduction can be improved. The modification of polymethylmethacrylate (PMMA) can enhance the ionic conductivity at room temperature and decrease the apparent conductive activation energy in PLSN, which reach 1.2×10 −4 S cm −1 and 0.14 eV, respectively. The nanocomposites exhibit better ionic conduction at high temperature. The modification of PMMA can be used to improve ionic conductivity for PLSN.
ISSN:0921-5107
1873-4944
DOI:10.1016/S0921-5107(00)00448-7