Induced smectic phases composed of 5CB and EBBA mixtures: structures and dielectric property

Induced smectic phases composed of 5CB and EBBA mixtures: structures and dielectric property

Induced smectic phases of 5CB-EBBA binary mixtures were investigated with respect to the structures, stabilities, and molecular motion. The highest stability of the ordered smectic phase was obtained when 5CB and EBBA were mixed at 1:2. At the same ratio, the transferred charges between 5CB and EBBA...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2022-08, Vol.738 (1), p.8-19
Main Authors: Takei, Shoyo, Fujioka, Mitsuki, Shimada, Yudai, Tabe, Yuka, Yamamoto, Takahiro
Format: Article
Language:eng
Subjects:
Binary mixtures
Chain dynamics
Charge transfer
dielectric relaxation
induced smectics
Molecular motion
molecular reorientation
Motion stability
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Summary:Induced smectic phases of 5CB-EBBA binary mixtures were investigated with respect to the structures, stabilities, and molecular motion. The highest stability of the ordered smectic phase was obtained when 5CB and EBBA were mixed at 1:2. At the same ratio, the transferred charges between 5CB and EBBA took the maximum, indicating the direct correlation of the induced phase to the charge-transfer interaction. Whereas, the molecular motion monotonically slowed down with increasing EBBA, which is ascribed to the decrease of the free volume. The stability and the slow molecular reorientation may be independently controlled in the induced smectics.
ISSN:1542-1406
1563-5287
1527-1943