- 著者
- Hayashi Hitoshi Wang Aohan Kawabata Kohsuke Goto Hiromasa
- 出版者
- Elsevier
- 雑誌
- Materials chemistry and physics (ISSN:02540584)
- 巻号頁・発行日
- vol.137, no.3, pp.816-824, 2013-01
- 被引用文献数
- 11
A series of chiral three-ring type compounds with rigid shape was employed as chiral inducers for induction of chiral cholesteric liquid crystal (cholesteric LC) from achiral nematic LC. Helical twisting power of the chiral compounds was estimated with the Cano wedge method. Cholesteric LC electrolyte solution was prepared by adding the chiral compounds. Subsequently, polymerization in the cholesteric LC was carried out to produce chiroptically active polymer films. This method is different from conventional methods for synthesizing chiral polymers because neither chiral monomers nor asymmetric catalysts are employed. Surface structure and optical properties of the polymer thus prepared were examined.
- 著者
- Saito Genki Hosokai Sou Akiyama Tomohiro
- 出版者
- Elsevier B.V.
- 雑誌
- Materials Chemistry and Physics (ISSN:02540584)
- 巻号頁・発行日
- vol.130, no.1, pp.79-83, 2011-10-17
- 被引用文献数
- 41
We synthesized ZnO nanoflowers using a solution plasma. We examined the effects of the applied voltage and the concentration of the electrolyte on the morphology of the products. In the experiments, the zinc wire (cathode) was immersed in an electrolysis solution of K2CO3 (concentration: 0.01 to 5.00 M) and was electrically melted by a glow discharge at different voltages ranging from 42 to 200 V. The results revealed that the products were nanoflowers having many nanorods (size: <100 nm). The ZnO nanoflowers had a wurtzite structure with the [0001] orientation in the growth direction. The product morphology changed with a change in the concentration of the electrolyte, C, and the applied voltage, V; that is, nanoflowers were generated under the limited conditions of (C, V) = (1.0 M, 66 V), (0.5 M, 80 V), and (0.1 M, 105 V).