Abstract
Abstract The temperature dependence of d.c. conductivity of poly(ethylene oxide) complexes with sodium iodide and the thiocyanates of sodium, potassium and ammonium has been investigated. In each case a transition to a lower activation energy at higher temperatures was observed. For the sodium complexes this transition occurs at ca 55°C which is well below the crystalline melting points at 200°C. For the potassium and ammonium complexes however, the transitions coincide with the melting points at ca 100 and 70°C respectively. It is proposed that at the transitions, thermal disintegration of complexes in the amorphous regions occurs. The complexes involve coordination of the cations to the ether oxygen atoms in the polymer backbone.
Keywords
Ethylene oxideAmmonium iodideIonic bondingAmorphous solidSodiumIonic conductivityGlass transitionInorganic chemistryOxideEtherAmmoniumPolymerActivation energyMaterials sciencePotassiumMelting pointSodium iodidePolymer chemistryChemistryIonCrystallographyPhysical chemistryOrganic chemistry
Affiliated Institutions
Related Publications
Physical and Chemical Properties of Nanocomposite Polymer Electrolytes
The physical and chemical properties of a new class of lithium conducting polymer electrolytes formed by dispersing ceramic powders at the nanoscale particle size into a poly(et...
The photovoltaic response in poly(p-phenylene vinylene) thin-film devices
We report measurements of the photovoltaic effect in diode structures formed with thin films (100 nm) of the conjugated polymer poly(p-phenylene vinylene), PPV, sandwiched betwe...
Two Types of Dielectric Polarization
The real part of the dielectric constant, ε′, of a material having a polarizability due either to dipoles or to heterogeneity should be a decreasing function of frequency while ...
Publication Info
- Year
- 1975
- Type
- article
- Volume
- 7
- Issue
- 5
- Pages
- 319-327
- Citations
- 1249
- Access
- Closed
External Links
Social Impact
Altmetric
PlumX Metrics
Social media, news, blog, policy document mentions
Citation Metrics
1249
OpenAlex
Cite This
Peter V. Wright
(1975).
Electrical conductivity in ionic complexes of poly(ethylene oxide).
British Polymer Journal
, 7
(5)
, 319-327.
https://doi.org/10.1002/pi.4980070505
Identifiers
- DOI
- 10.1002/pi.4980070505