Spin diffusion in the nuclear magnetic relaxation of isotopically labelled (CH)x |
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Authors: | M. Ziliox P. Spegt C. Mathis B. Francois G. Weill |
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Affiliation: | 1. Centre de Recherches sur les Macromolécules, C.N.R.S., Strasbourg, France |
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Abstract: | Isotopically labelled (CH)x samples have been studied to probe the influence of nuclear spin diffusion on the relaxation mechanisms of polyacetylene. The results are discussed in terms of two spin species: those relaxing by direct interaction with solitons and those diffusing by mutual flip-flop towards this well relaxed core. Predictions are made for the time dependence of magnetization recovery and for the frequency dependence of long T1. |
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