Polymer Clay Nanocomposite Membrane Dynamics Characterization via combined NMR and Neutron Scattering Studies

摘要

The use of flexible,long chain polymers is an approach that has been pursued in the development of ion transport membranes such as those for use in the replacement of liquid electrolytes in batteries.Poly(ethylene oxide) (PEO) is one potential replacement and has shown considerable conductivity at elevated temperatures near or above the melting point of the polymer.Since ionic transport is strongly dependent on the host polymer segmental motion,maintaining the polymer in an amorphous state is important for significant conduction to occur and thus requires operating high temperatures.Plasticizers are often used to increase the percentage of PEO that is amorphous and thus reduce the temperature at which significant conduction can occur.(1,2) However,many of these plasticizers can also reduce the beneficial mechanical properties that come with the use of flexible,long chain polymers such as PEO.