1B02 Polar ordering at an interface between an LC monolayer and a rubbed polyimide
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概要
- 論文の詳細を見る
Optical second harmonic generation (SHG) was used to study how mechanical rubbing modifies the surface structure of a polyimide (poly[4,4'-oxydiphenilenepyromellitimide], PMDA-ODA) film and how the rubbed polyimide surface aligns a liquid crystal monolayer (4'-n-octyl-4-cyanobiphenyl, 8CB) adsorbed on it. It was found that rubbing would align the polymer chains and make the polymer surface more polar and hence more SHG-active. The rubbed polymer surface would then align the adsorbed 8CB monolayer via molecule-molecule interaction in an orientational epitaxy manner. Approximate orientational distributions for molecules at the rubbed polymer surface and in the aligned 8CB monolayer were deduced from the measurements.
- 日本液晶学会の論文
- 2000-10-23
著者
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Hong Seok-cheol
Department Of Physics University Of California At Berkeley
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Shen Y.
Department Of Physics University Of California At Berkeley
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Oh-e Masahito
Department of Physics, University of California at Berkeley
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Oh-e Masahito
Yokoyama Nano-structured Lc Project Japan Science Technology Corporation:department Of Physics Unive
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Oh-e Masahito
Department Of Physics University Of California At Berkeley
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