Shape Anisotropy and Optical Birefringence Measurements of Dry and Swollen Liquid Single Crystal Elastomers(Condensed matter: structure and mechanical and thermal properties)
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概要
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We study the relation between the shape anisotropy changes, Δα, and the optical birefringence, Δn, of dry and swollen rigid bi-functionally (8.0mol%, 8A2) and flexible tri-functionally [5mol% (5V3) and 7mol% (7V3)] cross-linked liquid single crystal elastomers (LSCEs) as a function of temperature. 4-n-pentyl-4-cyanobiphenyl (5CB) is used as the solvent. Plotting Δα as a function of αn, a linear dependence is observed for all LSCE samples. This indicates that Δα results from the liquid crystal ordering. The largest Δα (〜0.2 at T=30℃) is observed in dry 8A2, which has a large frozen-in orientational order (FOO). The swollen samples show much smaller Δα, 〜0.03-0.05, because of a smaller modulus elasticity after the swelling process.
- 社団法人日本物理学会の論文
- 2007-07-15
著者
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KAI Shoichi
Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyush
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Brand Helmut
Theoretische Physik Iii Universitat Bayreuth
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YUSUF Yusril
Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyush
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MINAMI Naoki
Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyush
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YAMAGUCHI Shohei
Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyush
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CHO Dong-Uk
Department of Applied Quantum Physics and Nuclear Engineering, Graduate School of Engineering, Kyush
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CLADIS P.
Advanced Liquid Crystal Technologies
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FINKELMANN Heino
Makromolekulare Chemie, Universitat Freiburg
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Cho Dong-uk
Department Of Applied Quantum Physics And Nuclear Engineering Graduate School Of Engineering Kyushu
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Kai Shoichi
Department Of Applied Quantum Physics And Nuclear Engineering Graduate School Of Engineering Kyushu
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Kai Shoichi
Department Of Applied Physics Faculty Of Engineering Kyushu University
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Yusuf Yusril
Department Of Applied Quantum Physics And Nuclear Engineering Graduate School Of Engineering Kyushu
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Yusuf Yusril
Department Of Applied Physics Faculty Of Engineering Kyushu University
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Minami Naoki
Department Of Applied Quantum Physics And Nuclear Engineering Graduate School Of Engineering Kyushu
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Finkelmann Heino
Makromolekulare Chemie Universitat Freiburg
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Yamaguchi Shohei
Department Of Applied Quantum Physics And Nuclear Engineering Graduate School Of Engineering Kyushu
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Brand Helmut
Theoretical Physics University Of Bayreuth
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Kai Shoichi
Departemnt Of Applied Physics Kyushu University
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