The main objective of this project is to compare the conductivities, morphologies, and the elastomeric properties of poly(ethylene oxide) (PEO)/lithium perchlorate (LiClO4) and PEO/poly(2-vinylpyridine) (P2VP)/LiClO *4 blends created by use of mechanical alloying. That comparison is based on which process between mechanical alloying and solution blending forms blends that have better conductivity. The PEO/LiClO *4 4 to 1 ethylene oxide to lithium ion concentration exhibited an ionic conductivity of 1.7x10 **-6 S cm **-1 and a single melt peak at 189 deg. C with no phase separation in the microstructure. These results were the best received by the process of mechanical alloying under cryogenic conditions. Other blends exhibited a range of ionic conductivities from 1.7x10 **-6 to 8.4 x10 **-8 S/cm. The blends with smaller conductivities exhibited two melting peaks at approximately 70 deg. C, and 180 deg. C they also had phase seperation in their microstructures.
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