✦ LIBER ✦

Solid state NMR study of sodium thiocyanate/poly(ethylene oxide) electrolytes

✍ Scribed by Antonio Bartolotta; Claudia Forte; Marco Geppi; Domenico Minniti; Giuseppe Visalli

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 798 KB
Volume: 8
Category: Article
ISSN: 0926-2040
DOI: 10.1016/s0926-2040(97)00007-6

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✦ Synopsis

H-, 13C-, 23Na-solid state NMR measurements have been used to characterise the morphology and the dynamics of several NaSCN-PEO mixtures. Selective 13C-MAS experiments allowed to determine the composition of the (PEO)nINaSCN samples in terms of the different phases present, as well as the real stoichiometry of the crystalline complex.

H-and 13C-spin-lattice relaxation times provided estimates of the dimensions of the different domains and gave information on the dynamics of the polymer chains. 23Na-MAS spectra and 2D nutation experiments allowed to individuate the presence of different environments for the sodium cations on the basis of their quadrupolar interactions. 0 1997 Elsevier Science B.V.

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