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Digitale Medien

The phases of polymers as determined by NMR (1997)

Miller, J. B.

Springer

Journal of thermal analysis and calorimetry 49 (1997), S. 521-524

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ISSN: 1572-8943

Schlagwort(e): dynamics ; morphology ; semicrystalline polymers

Quelle: Springer Online Journal Archives 1860-2000

Thema: Chemie und Pharmazie

Notizen: Abstract Nuclear magnetic resonance (NMR) spectroscopy has been used to study the morphology and dynamics in semicrystalline polymers. Dynamics may be observed through NMR relaxation rates that are sensitive to motions in the 1–108 Hz range, or through modulation of anisotropic magnetic interactions, such as the chemical shift and dipole-dipole interactions. Morphological structure may be inferred through NMR measurements of polymer dynamics or investigated directly through studies of the magnetic interactions. Here, we discuss the study of morphological structure in semicrystalline polymers using NMR, and review results on poly(ethylene terephthalate) that address the question of the number of phases in this semicrystalline polymer.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01987479

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