A hexaether-substituted rufigallol mesogen is studied by measuring deuteron spin-lattice relaxation times T 1Z and T 1Q in the hexagonal D ho phase. Small-step rotations of discotic molecules within each column are described by the socalled Ôanisotropic viscosityÕ model, giving rotational diffusion
A deuteron NMR study of axial motion and side chain conformation in the mesophase of discotic liquid crystal main-chain polymers
✍ Scribed by J. Hirschinger; W. Kranig; H. W. Spiess
- Publisher
- Springer
- Year
- 1991
- Weight
- 794 KB
- Volume
- 269
- Category
- Article
- ISSN
- 0340-255X
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📜 SIMILAR VOLUMES
A strong dependence of the rotational dynamics of the mesogenic units ( brelaxation) on the order of the mesophase was found in sidechain liquid crystal polymers. The preexponential frequency factor, f \* bϱ , and the activation energy, E\* ab , of the b-relaxation rate both increase significantly (
## Abstract In the present work we report the results of a Thermally Stimulated Discharge Currents (TSDC) study of a side‐chain liquid‐crystalline polymer. The different discharges observed in the TSDC spectrum have been analysed by the thermal sampling technique and have been attributed to specifi