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 \* bΟ± , and the activation energy, E\* ab , of the b-relaxation rate both increase significantly (
Effect of the chemical constitution of the side-chain on the formation and the structure of mesophases in some polysiloxanes
β Scribed by M. Mauzac; F. Hardouin; H. Richard; M.F. Achard; G. Sigaud; H. Gasparoux
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 411 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0014-3057
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract **Summary:** Biaxial sideβon cholesteric copolysiloxanes with laterally attached mesogenic groups were investigated in mixtures with a low molar mass liquid crystal. While mixtures with a low concentration of the polymer exhibit the conventional fingerprint texture, for concentrations a
The effect of sidechain protonation and tautomerization of histidine on the electronic structure of proteins is investigated. Ab initio band structure results for proton&d polyhktidine, polyhistidine in both tautomeric forms, polyglycine and polyalanine are reported. The density of states of the cor