OBSERVATION OF THE NMR SPIN–SPIN RELAXATION OF SOME POLYBUTADIENE-C7D8 SOLUTIONS
The NMR relaxation of the transverse magnetization of the protons attached to the polymeric chains was observed for the molten polybutadiene and for some polybutadiene–toluene solutions in a large temperature domain. The superposition properties of the relaxation curves, the linear temperature depen...
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| Veröffentlicht in: | Modern physics letters. B, Condensed matter physics, statistical physics, applied physics Condensed matter physics, statistical physics, applied physics, 2006-12, Vol.20 (28), p.1795-1801 |
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| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The NMR relaxation of the transverse magnetization of the protons attached to the polymeric chains was observed for the molten polybutadiene and for some polybutadiene–toluene solutions in a large temperature domain. The superposition properties of the relaxation curves, the linear temperature dependence of the experimental parameter t0.6(T) and the observation of the pseudo-solid echoes were correlated to the existence of the temporary junctions between the polymeric chains. |
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| ISSN: | 0217-9849 1793-6640 |
| DOI: | 10.1142/S0217984906012067 |