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Interpenetrating polymer networks based on poly(trimethylene carbonate) and poly(ethylene oxide) blends doped with lithium salts

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Resumo:Solid polymer electrolytes based on poly(trimethylene carbonate) and poly(ethylene oxide) interpenetrating networks doped with lithium hexafluoroantimonate have been prepared and characterized by measurements of ionic conductivity, cyclic voltammetry, differential scanning calorimetry and thermogravimetry. Electrolytes with lithium salt compositions of n between 5 and 15 (where n represents the total number of cation-coordinating units per lithium ion) and a host polymer component of -(O=COCH2CH2CH2O)n- units contributing between 5 and 15 wt% of the electrolyte formulation, were prepared by co-dissolution in acetonitrile. The solvent casting technique was used to produce flexible, transparent and free-standing films.
Autores principais:Barbosa, P. C.
Outros Autores:Rodrigues, L. C.; Silva, Maria Manuela; Smith, Michael John
Assunto:Poly(trimethylene carbonate) Poly(ethylene oxide) Solid polymer electrolyte Lithium salts
Ano:2009
País:Portugal
Tipo de documento:comunicação em conferência
Tipo de acesso:acesso restrito
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho
Descrição
Resumo:Solid polymer electrolytes based on poly(trimethylene carbonate) and poly(ethylene oxide) interpenetrating networks doped with lithium hexafluoroantimonate have been prepared and characterized by measurements of ionic conductivity, cyclic voltammetry, differential scanning calorimetry and thermogravimetry. Electrolytes with lithium salt compositions of n between 5 and 15 (where n represents the total number of cation-coordinating units per lithium ion) and a host polymer component of -(O=COCH2CH2CH2O)n- units contributing between 5 and 15 wt% of the electrolyte formulation, were prepared by co-dissolution in acetonitrile. The solvent casting technique was used to produce flexible, transparent and free-standing films.