Molecular and supramolecular deformations and disclinations in a liquid crystalline copolyether thin films under an electrostatic field
文献类型：期刊论文
| 作者 | Xie, FC; Hu, ZJ; Liu, JP; Yan, DH; He, TB; Wang, BJ; Zheng, RQ; Cheng, SZD; Percec, V |
| 刊名 | MACROMOLECULAR RAPID COMMUNICATIONS
 |
| 出版日期 | 2001-04-05 |
| 卷号 | 22期号:6页码:396-400 |
| ISSN号 | 1022-1336 |
| 英文摘要 | An alignment study of a liquid crystalline copolyether TPP-7/11(5/5) thin films has been carried out in a 10 kV . cm(-1) electrostatic field parallel to the thin film surface normal. This copolyether possesses a negative dielectric anisotropy. The chain molecules are homogeneously aligned in the electric field and they form two-dimensionally ordered lamellae in a tilted columnar phase when the samples were cooled to room temperature. It is observed that the chain molecules are splayed to form bent lamellae and the chain direction is perpendicular to the tangential direction of the lamellar surfaces. These lamellae thus become replicas of the chain orientation, Due to the flexoelectric effect and density fluctuation on the thin film free surface, disclinations having topological strength s = 1, c = pi /4 and defect walls form. These s = 1 disclinations possesses both left- and right-handednesses. Discussion of the defect formations have been attempted. |
| 语种 | 英语 |
| WOS记录号 | WOS:000168097600004 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/76687]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | He, TB |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China 2.Univ Akron, Maurice Morton Inst, Akron, OH 44325 USA 3.Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA 4.Univ Penn, Dept Chem, Philadelphia, PA 19104 USA |
| 推荐引用方式 GB/T 7714 | Xie, FC,Hu, ZJ,Liu, JP,et al. Molecular and supramolecular deformations and disclinations in a liquid crystalline copolyether thin films under an electrostatic field[J]. MACROMOLECULAR RAPID COMMUNICATIONS,2001,22(6):396-400. |
| APA | Xie, FC.,Hu, ZJ.,Liu, JP.,Yan, DH.,He, TB.,...&Percec, V.(2001).Molecular and supramolecular deformations and disclinations in a liquid crystalline copolyether thin films under an electrostatic field.MACROMOLECULAR RAPID COMMUNICATIONS,22(6),396-400. |
| MLA | Xie, FC,et al."Molecular and supramolecular deformations and disclinations in a liquid crystalline copolyether thin films under an electrostatic field".MACROMOLECULAR RAPID COMMUNICATIONS 22.6(2001):396-400. |
入库方式： OAI收割
来源：化学研究所
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