摘要:

We have investigated the relationship between order parameter and physical constants (dielectric anisotropy and splay elastic constant) for fluorinated liquid crystals with a small temperature coefficient of the threshold voltage. In these special fluorinated liquid crystals, the dielectric anisotropy is proportional to the square of the order parameter. We have found that this anomalous dielectric behaviour affects the small temperature coefficient of the threshold voltage.

ISSN:0267-8292    

DOI:10.1080/026782997208866

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

摘要:

Crystallization of zinc(II) dodecyl benzene sulphonate has been suppressed by either the removal of water of hydration or the rapid cooling of the compound from the liquid crystalline state. The anisotropic structure is preserved in the solid state when the hydrated compound in the LC phase is rapidly quenched, while removal of the water of hydration at temperatures in or above the LC phase and the subsequent slow cooling produces a stable isotropic structure.

ISSN:0267-8292    

DOI:10.1080/026782997208875

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor

摘要:

The S4 phase of a complex of silver(I) dodecylsulphate with two alkoxystilbazole ligands has been studied by X-ray scattering. Our preliminary results suggest that the phase has a tetragonal symmetry; the space group has also been identified.

ISSN:0267-8292    

DOI:10.1080/026782997208884

出版商:Taylor & Francis Group    

年代:1997

数据来源: Taylor