Solid-state polymer electrolytes offer a promising alternative to liquid electrolyte supports in lithium ion batteries. Herein, we investigate a diblock system which may offer a nanostructured approach to membrane electrolytes. We have synthesized dicarboximide-functionalized oxanorbornyl diblock copolymers with varying ratios of ethylene oxide (EO)2 and phenyl side groups. Polymerization was conducted under living conditions using a Grubbs third generation catalyst through a ring opening metathesis mechanism. The diblocks were characterized using NMR, GPC, and DSC which shows two glass transition temperatures that correlate with those observed in the phenyl and ethylene oxide (EO)2 homopolymers. Small angle x-ray scattering and AFM of spun cast films will be used to characterize microphase-separated nanostructures, which may be useful in lithium ion conduction.

Investigation of microphase separated dicarboximide-functionalized oxanorbornyl diblock copolymers exhibiting nanostructure

247th National Meeting (2014)

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