2013 Fiscal Year Final Research Report
Observation of Layer Fluctuations and Dynamics in Side-Chain polymer Nematic Liquid Crystals
| Project/Area Number |
22340120
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Biophysics/Chemical physics
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MATSUOKA Tatsuro 名古屋大学, 大学院工学研究科, 准教授 (60252269)
KANG Sungmin 東京工業大学, 大学院理工学研究科, 助教 (00523664)
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| Project Period (FY) |
2010-04-01 – 2013-03-31
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| Keywords | 二量体液晶 / 動的光散乱 / ネマチック液晶 |
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| Research Abstract |
The dynamic behaviour of twin dimer nematic liquid crystals were investigated for alpha,omega-bis(4-cyanobiphenyl-4'-yloxy)alkanes (BCBO-m, m = 7-10: the number of spacer methylene units) by dynamic light scattering and the frequencies of the splay, twist and bend modes were determined successfully. The frequencies of BCBO-m are dependent on m: they oscillate depending on the parity of m with exhibiting larger values for even-membered BCBO-m and decrease with increasing m. Such an odd-even oscillation in the splay and bend mode frequencies are governed by that in the elastic constants.
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