Anelastic relaxations and molecular motions in polymeric electrolytes
作者： A. Bartolotta , G. Carini , G. Di Marco , C. Romeo , G. Salvato
DOI: 10.1063/1.347353
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摘要: A study of the frequency (0.1–30 Hz) and temperature (120–373 K) behavior internal friction dynamic modulus was carried out in polyethylene oxide (PEO)‐Ba(SCN)2 polymeric electrolytes. The mechanical spectra reveal presence following anelastic relaxations: (a) γ process due to localized movements within main chain, (b) a relaxing particles introduced by salt, (c) αa associated glass‐rubber like transition. Both γ‐ ‐loss peaks are shifted higher temperatures addition salt. careful analysis observed peculiarities permits us gain an insight on microscopic nature relaxation mechanisms associate with segmental motion amorphous phase. In pure PEO complex lowest salt content, loss melting transition crystals is also observed. cited lacking complexes molar fraction X>0.05, whic...
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