Phase structure and transition behavior of a liquid crystal 5-{[(4 '-heptoxy-4-biphenylyl)oxy]carbonyl}-1-pentyne
文献类型：期刊论文
| 作者 | Liu LJ ; Geng JX ; Zhou YC ; Yang XN ; Li G ; Zhou EL ; Lam JWY ; Tang BH |
| 刊名 | journal of molecular liquids
 |
| 出版日期 | 2006 |
| 卷号 | 124期号:1-3页码:96-101 |
| 关键词 | MONOSUBSTITUTED POLYACETYLENE PHOTOLUMINESCENCE |
| ISSN号 | 0167-7322 |
| 通讯作者 | li g |
| 中文摘要 | the phase structures and transition behaviors of a novel liquid crystal compound containing biphenylyl mesogen, 5-{[(4'-heptoxy-4-biphenytyl) oxy]carbonyl}-1-pentyne (a3e'o7), have been investigated by differential scanning calorimetry (dsc), polarizing optical microscopy (pom) and wide angle x-ray diffraction (waxd). in contrast to the published compound 5- {[(4'-heptoxy-4-biphenyl-yl)carbonyl]oxy}-1-pentyne (a3eo7), in which the ester bridge between the mesogenic core and the flexible spacer has different linkage order, a3e'o7 shows strikingly different phase structure and transition behaviors. overall, a3e'o7 has better packing order and higher transition temperatures. it undergoes three enantiotropic stable liquid crystalline phases which are associated to smectic a (s-a) phase (100.2-98.2 degrees c), smectic c (s-c) phase (98.2-87.2 degrees c) and highly ordered smectic x (s-x) phase (87.2-63.3 degrees c), respectively, till eventual crystallization takes place upon cooling from isotropic state to room temperature. however, a3eo7 only shows monotropic sa (72.4-53.6 degrees c) phase and the metastable monotropic s-c phase provided that the same thermal treatment is applied. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235412700016 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16987]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Liu LJ,Geng JX,Zhou YC,et al. Phase structure and transition behavior of a liquid crystal 5-{[(4 '-heptoxy-4-biphenylyl)oxy]carbonyl}-1-pentyne[J]. journal of molecular liquids,2006,124(1-3):96-101. |
| APA | Liu LJ.,Geng JX.,Zhou YC.,Yang XN.,Li G.,...&Tang BH.(2006).Phase structure and transition behavior of a liquid crystal 5-{[(4 '-heptoxy-4-biphenylyl)oxy]carbonyl}-1-pentyne.journal of molecular liquids,124(1-3),96-101. |
| MLA | Liu LJ,et al."Phase structure and transition behavior of a liquid crystal 5-{[(4 '-heptoxy-4-biphenylyl)oxy]carbonyl}-1-pentyne".journal of molecular liquids 124.1-3(2006):96-101. |
入库方式： OAI收割
来源：长春应用化学研究所
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