4-[6-(methacryloyloxy)hexyloxy]-4'-ethoxyazobenzene | 101902-36-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 偶氮苯
• 英文名称: 4-[6-(methacryloyloxy)hexyloxy]-4'-ethoxyazobenzene
• 英文别名: 6-(4-(4-ethoxyphenylazo)phenoxy)-hexyl methacrylate；M6ABOC2；6-[4-[(4-Ethoxyphenyl)diazenyl]phenoxy]hexyl 2-methylprop-2-enoate；6-[4-[(4-ethoxyphenyl)diazenyl]phenoxy]hexyl 2-methylprop-2-enoate
• CAS: 101902-36-7
• 化学式: C₂₄H₃₀N₂O₄
• 分子量: 410.513
• InChiKey: STYSUSDCFQQHNH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.3
• 重原子数：
  30
• 可旋转键数：
  14
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  69.5
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  对乙氧基苯胺 在 盐酸 、 potassium carbonate 、 三乙胺 、 potassium iodide 、 sodium nitrite 作用下， 以 四氢呋喃 为溶剂， 生成 4-[6-(methacryloyloxy)hexyloxy]-4'-ethoxyazobenzene
  参考文献：
  名称：

  与立构中心绝对构型无关的可切换相螺旋：手性液晶聚合物中军士和士兵之间的反常感应

  摘要：

  控制手性液晶（LC）聚合物中的第二相非常重要，因为它将分子信息传递和放大到宏观性质。然而，液晶相的手性超结构完全由母体手性源的固有构型决定。在这里，我们报告了通过普通手性“军士”单元和各种非手性“士兵”单元之间的非传统命令来切换异核结构的超分子手性。对于具有介晶和非介晶士兵单元的共聚物组装体，观察到中士和士兵之间不同的手性诱导途径，证明了独立于立构中心绝对构型的螺旋相的形成。在存在非介晶士兵单位的情况下，观察到非晶相中的经典 SaS（军士和士兵）效应；而在完整的LC系统中，中士的双向命令被激活以响应相变。同时，成功获得了包括球形胶束、蠕虫、纳米线、纺锤体、蝌蚪、各向异性椭圆囊泡和各向同性球形囊泡在内的全谱形态相图。以前很少从手性聚合物系统中获得此类纺锤体、蝌蚪和各向异性椭圆囊泡。

  DOI：

  10.1021/jacs.3c02999

文献信息

• Photocontrolled microphase separation in a nematic liquid–crystalline diblock copolymer
  作者：Haifeng Yu、Takaomi Kobayashi、Guo-Hua Hu

  DOI：10.1016/j.polymer.2011.01.053

  日期：2011.3

  Using a bromo-terminated poly(ethylene oxide) as a macroinitiator, an amphiphilic liquid crystalline (LC) diblock copolymer with an azobenzene moiety as a nematic mesogen was prepared by an atom transfer radical polymerization process. In thin films of the well-defined diblock copolymer with the mesogenic block as a continuous phase upon microphase separation, the influence of supramolecular cooperative motion on the microphase-separated nanocylinders was systematically studied. Although the major phase of the hydrophobic nematic LC block showed only one-dimensional order, it could endow the separated minor phase of the hydrophilic PEO nanocylinders with three-dimensionally ordered structures. Both out-of-plane perpendicular and in-plane parallel patternings of the regularly ordered nanocylinder arrays were successfully fabricated on macroscopic scales by thermal annealing and photoalignment, respectively. The microphase-separated nanostructures with high regularity showed excellent reproducibility and mass production, which might guarantee nanotemplated fabrication processes and would lead to novel industrial applications in macromolecular engineering. (C) 2011 Elsevier Ltd. All rights reserved.
• Photoalignment and Holographic Properties of Azobenzene-Containing Block Copolymers with Oxyethylene and Alkyl Spacers
  作者：Yumiko Naka、Haifeng Yu、Atsushi Shishido、Tomiki Ikeda

  DOI：10.1080/15421400903196120

  日期：2009.11.11

  Two azobenzene-containing block copolymers with an oxyethylene (P1) or an alkyl (P2) spacer in the side chain were prepared by atom transfer radical polymerization (ATRP). Neither of the block copolymers with a low azobenzene content showed a liquid-crystalline phase. However, their glass transition temperatures (T(g)s) were lowered by introducing flexible spacers. In particular, T-g was lowered by about 30 degrees C in P1. Their photoalignment and holographic behavior was investigated at various temperatures in thin films. Rapid changes in refractive index were induced in the P1 films upon irradiation at a temperature below T-g. But the photoinduced birefringence in the P1 film was lower than that in the P2 films. Similar results were obtained in holographic recording. The azobenzene-containing block copolymer with the oxyethylene spacer (P1) used in this study has potential application for dynamic hologram.