title: Solid state NMR study of sodium thiocyanate/poly(ethylene oxide) electrolytes.
abstract: 1H-, 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)nNaSCN samples in terms of the different phases present, as well as the real stoichiometry of the crystalline complex. 1H- 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.
authors.affiliation: Istituto Tecniche Spettroscopiche del CNR, Messina, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Bartolotta
authors.forename: C
authors.initials: C
authors.lastname: Forte
authors.forename: M
authors.initials: M
authors.lastname: Geppi
authors.forename: D
authors.initials: D
authors.lastname: Minniti
authors.forename: G
authors.initials: G
authors.lastname: Visalli
mesh_terms: D002247:Carbon Isotopes; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D011092:Polyethylene Glycols / Q000737:chemistry*; D011522:Protons; D012975:Sodium Isotopes; D013861:Thiocyanates / Q000737:chemistry*
chemical_list: D002247:Carbon Isotopes; D011522:Protons; D012975:Sodium Isotopes; D013861:Thiocyanates; D011092:Polyethylene Glycols; C024553:sodium thiocyanate