Molecular dynamics in poly[(R)-3-hydroxybutyric acid] biopolymer as studied by NMR
✍ Scribed by F. Nozirov; Z. Fojud; E. Szcześniak; S. Jurga
- Publisher
- Springer Vienna
- Year
- 2000
- Tongue
- English
- Weight
- 420 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0937-9347
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📜 SIMILAR VOLUMES
Spin-lattice relaxation times T 1 and T 1d as well as NMR second moment were employed to study the molecular dynamics of riboflavin (vitamin B 2 ) in the temperature range 55-350 K. The broad and flat T 1 minimum observed at low temperatures is attributed to the motion of two nonequivalent methyl gr
Solid poly[(R)-3-hydroxybutyric] acid was examined by high-resolution 13C MAS NMR, differential scanning calorimetry and infrared spectroscopy. The 13C methyl group resonance consists of three components: the rigid amorphous phase, the crystalline phase and the mobile amorphous phase. Spectral decon