Electric-field-induced molecular alignment of side-chain liquid-crystalline polyacetylenes containing biphenyl mesogens
文献类型：期刊论文
| 作者 | Geng, JX; Zhou, EL; Li, G; Lam, JWY; Tang, BZ |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
 |
| 出版日期 | 2004-04-01 |
| 卷号 | 42期号:7页码:1333-1341 |
| ISSN号 | 0887-6266 |
| 关键词 | Side-chain Liquid-crystalline Polymers Polyacetylenes Orientation Electric Field X-ray |
| DOI | 10.1002/polb.20021 |
| 英文摘要 | Electric-field-induced molecular alignments of side-chain liquid-crystalline polyacetylenes [-{HC=C[(CH2)(m)OCO-biph-OC7H15]}-, where biph is 4,4'-biphenylyl and m is 3 (PA3EO7) or 9 (PA9EO7)] were studied with X-ray diffraction and polarized optical microscopy. An orientation as high as 0.84 was obtained for PA9EO7. Furthermore, the molecular orientation of]PA9EO7 was achieved within a temperature range between the isotropic-to-smectic A transition temperature and 115 degreesC, and this suggested that the orientational packing was affected by the thermal fluctuation of the isotropic liquid and the mobility of the mesogenic moieties. The maximum achievable orientation for PA9EO7 was much greater than that for PA3EO7. This was the first time that the electric-field-induced molecular orientation of a side-chain liquid-crystalline polymer with a stiff backbone was studied. (C) 2004 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| 出版者 | JOHN WILEY & SONS INC |
| WOS记录号 | WOS:000220146700022 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/55227]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, G |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Geng, JX,Zhou, EL,Li, G,et al. Electric-field-induced molecular alignment of side-chain liquid-crystalline polyacetylenes containing biphenyl mesogens[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2004,42(7):1333-1341. |
| APA | Geng, JX,Zhou, EL,Li, G,Lam, JWY,&Tang, BZ.(2004).Electric-field-induced molecular alignment of side-chain liquid-crystalline polyacetylenes containing biphenyl mesogens.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,42(7),1333-1341. |
| MLA | Geng, JX,et al."Electric-field-induced molecular alignment of side-chain liquid-crystalline polyacetylenes containing biphenyl mesogens".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 42.7(2004):1333-1341. |
入库方式： OAI收割
来源：化学研究所
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