An nmr investigation of ionic structure and mobility in plasticized solid polymer electrolytes
Data(s) |
01/10/1995
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Resumo |
<sup>23</sup>Na and <sup>19</sup>F nuclear magnetic resonance spectroscopy is used to investigate the effect of plasticizer addition on ionic structure and mobility in a urethane crosslinked polyether solid polymer electrolyte. The incorporation of dimethyl formamide and propylene carbonate plasticizers in a sodium triflate/polyether system results in an upfield chemical shift for the <sup>23</sup>Na resonance consistent with decreased anion-cation association and increased cation-plasticizer interactions. The <sup>19</sup>F resonances appears less susceptible to changes in chemical environment with only minor chemical shift changes recorded. Spin lattice relaxation measurements for the <sup>19</sup>F nucleus are also reported. Two minima are observed in the relaxation measurements consistent with both an inter and intramolecular relaxation mechanism.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Elsevier Science Pub. Co. |
Relação |
http://dro.deakin.edu.au/eserv/DU:30030132/forsyth-nmrinvestigation-1995.pdf http://dx.doi.org/10.1016/0013-4686(95)00190-P |
Direitos |
1995, Elsevier Science Ltd. |
Palavras-Chave | #nuclear magnetic resonance #sodium-23 #fluorine-19 #plasticized polymer electrolytes |
Tipo |
Journal Article |