| 2 | Author
| A. Scharkowski, H. Schmiedel, R. Stannarius, E. Weißhuhn | Requires cookie* | | Title
| Elastic Constants of Nematic Phenylpyrimidines Determined by Two Different Methods  | | | Abstract
| A survey of various methods to measure the elastic constants K, of nematic liquid crystals is given. To determine K 3 and the anisotropy of the diamagnetic susceptibility Ax of two members of the 5n-hexyl-2-[4n-alkyloxy-phenyl]-pyrimidines and a mixture of both, we used a combined electro-magneto-optical method, consisting in independent measurements of the optical phase difference in electric and magnetic fields acting on the same cell. The temperature dependence of the K r and K 3 -values for these phenylpyrimidines can be explained by common theories. The Ax data show the same temperature dependence as the values of the orientational order parameter S obtained by 'H-NMR. | | |
Reference
| Z. Naturforsch. 45a, 37—42 (1990); received June 23 1989 | | |
Published
| 1990 | | |
Keywords
| Nematic liquid crystals, elastic constants, diamagnetic susceptibility, electro-optic, magneto-optic | | |
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| default:Reihe_A/45/ZNA-1990-45a-0037.pdf | | | Identifier
| ZNA-1990-45a-0037 | | | Volume
| 45 | |
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