Proceedings of the 2015 International Conference on Material Science and Applications

Light-induced Phase Transition of Lyotropic Liquid Crystals and Motion Behavior of Micron Objects via Photochemical Azobenzene Molecules

Authors
Su Ma, Yutaka Kuwahara, Tomonari Ogata, Sunnam Kim, Seiji Kurihara
Corresponding Author
Su Ma
Available Online June 2014.
DOI
https://doi.org/10.2991/icmsa-15.2015.11How to use a DOI?
Keywords
Lyotropic liquid crystal, Phase transition, Azobenzene, Motion behavior.
Abstract
Ternary lyotropic liquid crystal (LLC), was prepared by mixing tetradecyltrimethylamonium bromide (MTAB), water and azobenzene (Az). The phase transition of the LLC was induced from LC phase to isotropic (I) one upon Ar+ laser, which was owing to the trans-cis-trans phoisomerizaion cycle of Az during the irradiation. After that, the LC phase gradually recovered from I phase to nematic (N) phase when being exposed to dark condition. It was also suggested that the recovery time from I to N was different with the Az structures, temperature and ratio of MTAB/Az in the ternary system. Then, the effect of light irradiation on the motion behavior of micron objects dispersed in the ternary LLC film was studied. It was found that the micron objects which dispersed in the irradiated area moved toward the center of the irradiated area, while the micron objects which dispersed around the irradiated area moved away from the irradiated area.
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Proceedings
2015 International Conference on Material Science and Applications (icmsa-15)
Part of series
Advances in Physics Research
Publication Date
June 2014
ISBN
978-94-62520-75-2
ISSN
2352-541X
DOI
https://doi.org/10.2991/icmsa-15.2015.11How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Su Ma
AU  - Yutaka Kuwahara
AU  - Tomonari Ogata
AU  - Sunnam Kim
AU  - Seiji Kurihara
PY  - 2014/06
DA  - 2014/06
TI  - Light-induced Phase Transition of Lyotropic Liquid Crystals and Motion Behavior of Micron Objects via Photochemical Azobenzene Molecules
BT  - 2015 International Conference on Material Science and Applications (icmsa-15)
PB  - Atlantis Press
SP  - 57
EP  - 62
SN  - 2352-541X
UR  - https://doi.org/10.2991/icmsa-15.2015.11
DO  - https://doi.org/10.2991/icmsa-15.2015.11
ID  - Ma2014/06
ER  -