Abstract
Low molecular weight poly(propylene oxide), PPO, was complexed with varying amounts of sodium trifluoromethanesulphonate, NaCF 3SO 3. Bulk PPO and the PPO-NaCF 3SO 3 complexes were investigated using 13C, 19F and 23Na nuclear magnetic resonance spectroscopy. Spin-lattice relaxation time, T 1, measurements were made as a function of temperature. The T 1 minima are observed for the different nuclei at different temperatures and concentrations of complexed salt. The 13C T 1 data are interpreted in terms of a Cole-Cole distribution of correlation times. Polymer motion is discussed in the context of the nuclei probed.
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