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Ion conductivity studies of blends of poly(methyl methacrylate)-g-poly(ethylene glycol) and poly(ethylene glycol) complexed with LiCF3 SO3

✍ Scribed by Kyoung-Hee Lee; Jung-Ki Park; Hong-Doo Kim

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
539 KB
Volume
34
Category
Article
ISSN
0887-6266

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✦ Synopsis

Polymer electrolytes which are adhesive, transparent, and stable to atmospheric moisture have been prepared by blending poly(methy1 methacrylate)-g-poly(ethy1ene glycol) with poly(ethy1ene glycol)/LiCF,SO, complexes. The maximum ionic conductivities at room temperature were measured to be in the range of lo-* to s cm-'. The clarity of the sample was improved as the graft degree increased for all the samples studied. The graft degree of poly(methy1 methacrylate)-g-poly(ethy1ene glycol) was found to be important for the compatibility between the poly(methy1 methacrylate) segments in poly(methy1 meth-acry1ate)-g-poly(ethy1ene glycol) and the added poly(ethy1ene glycol), and consequently, for the ion conductivity of the polymer electrolyte. These properties make them promising candidates for polymer electrolytes in electrochromic devices. 0

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