Gel electrolyte system based on polyvinyl chloride with addition of LiClO/sub 4//propylene carbonate: structure, morphology, thermal and conductivity properties (original) (raw)

2002, IEEE Transactions on Dielectrics and Electrical Insulation

X-ray scattering, calorimetric, and quasi-elastic neutron scattering (QENS) investigations of the polymer gel electrolytes based on 20% PVC, containing 80% of propylene carbonate (PC)-LiCIO, solution as a liquid phase were made. It was established that after incorporating PC into the micropores of PVC gels the glass transition of PC increased by 3 K. This is, evidently, a reflection of a n effect of confining liquid PC in the pores of PVC microphase-separated morphology. Addition of salt to the PVC-PC system results in raising T, of both the pure PC and PVC-PC gel by 10 K. The SAXS data of pure PVC and PVC-PC and PVC-PC-LiCIO, indicate that the gels based on PVC consist of microdomains of a different composition. Single-particle and collective dynamics of solvent molecules in free state and in the pores of polymer gels based on PVC were studied by quasi-elastic neutron scattering technique.

Sign up for access to the world's latest research.

checkGet notified about relevant papers

checkSave papers to use in your research

checkJoin the discussion with peers

checkTrack your impact