Order and Mobility in Polycarbonate−Poly(ethylene oxide) Blends Studied by Solid-State NMR and Other Techniques
✍ Scribed by Brus, J.; Dybal, J.; Schmidt, P.; Kratochvíl, J.; Baldrian, J.
- Book ID
- 121201814
- Publisher
- American Chemical Society
- Year
- 2000
- Tongue
- English
- Weight
- 256 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0024-9297
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Blends of poly(vinyl chloride), PVC, and poly(ethylene oxide), PEO, have been studied for a complete range of composition, by differential scanning calorimetry and high-resolution solid state t3C-NMR spectroscopy. Proton spin-lattice relaxation times in the rotating frame, T~p(H), as well as calorim
Solid-state 13 C NMR spectra and ab initio calculations of 13 C NMR chemical shifts show that poly(ethylene oxide) (PEO) carbons in complex with LiCF 3 SO 3 (both in crystalline and amorphous phase) are more shielded in comparison with neat PEO, due to the coordination to the Li + cation. The result