2-Methyl-acrylic acid 2-{2-[4-(4-cyano-phenylazo)-phenoxy]-ethoxy}-ethyl ester | 171117-14-9

• 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: 2-Methyl-acrylic acid 2-{2-[4-(4-cyano-phenylazo)-phenoxy]-ethoxy}-ethyl ester
• CAS: 171117-14-9
• 化学式: C₂₁H₂₁N₃O₄
• 分子量: 379.415
• InChiKey: ACLJANFUWVDCHS-WCWDXBQESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.49
• 重原子数：
  28.0
• 可旋转键数：
  10.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  93.27
• 氢给体数：
  0.0
• 氢受体数：
  7.0

反应信息

• 作为产物：
  描述：

  4-[(4-羟基苯基)偶氮]苯甲腈 在 potassium carbonate 、 三乙胺 作用下， 以 氯仿 、 二乙二醇二甲醚 为溶剂， 反应 72.0h， 生成 2-Methyl-acrylic acid 2-{2-[4-(4-cyano-phenylazo)-phenoxy]-ethoxy}-ethyl ester
  参考文献：
  名称：

  Synthesis and Characterization of New Liquid-Crystalline Block Copolymers with p-Cyanoazobenzene Moieties and Poly(n-butyl acrylate) Segments Using Atom-Transfer Radical Polymerization

  摘要：

  Homopolymers with side-chain liquid-crystalline units (LC) were prepared by ATRP of a LC monomer, 2- [2-(4-cyano-azobenzene-4'-oxy)ethylene-oxy] ethyl methacrylate. The resulting polymers had low polydispersity, M-w/M-n < 1.2. Optical and thermal investigation confirmed that both the monomer and the homopolymers have smectic structures. New di- and triblock copolymers containing LC units, with different ratios of the block containing the LC monomer with azobenzene moiety, and poly(n-butyl acrylate) as a soft segment were successfully prepared using ATRP. The block copolymerization proceeded with controlled/living characteristics. The morphologies of thin films of the block copolymers cast from different solvents were examined by atomic force microscopy using different casting procedures. Whereas the observed morphologies were similar to those observed in conventional block copolymers, particularly strong dependence on sample preparation conditions and thermal history was observed, suggesting the role of mesogenic blocks in stabilization of metastable states.

  DOI：

  10.1021/ma0492059

文献信息

• Synthesis and Characterization of New Liquid-Crystalline Block Copolymers with <i>p</i>-Cyanoazobenzene Moieties and Poly(<i>n</i>-butyl acrylate) Segments Using Atom-Transfer Radical Polymerization
  作者：Yang-Kyoo Han、Bruno Dufour、Wei Wu、Tomasz Kowalewski、Krzysztof Matyjaszewski

  DOI：10.1021/ma0492059

  日期：2004.12.1

  Homopolymers with side-chain liquid-crystalline units (LC) were prepared by ATRP of a LC monomer, 2- [2-(4-cyano-azobenzene-4'-oxy)ethylene-oxy] ethyl methacrylate. The resulting polymers had low polydispersity, M-w/M-n < 1.2. Optical and thermal investigation confirmed that both the monomer and the homopolymers have smectic structures. New di- and triblock copolymers containing LC units, with different ratios of the block containing the LC monomer with azobenzene moiety, and poly(n-butyl acrylate) as a soft segment were successfully prepared using ATRP. The block copolymerization proceeded with controlled/living characteristics. The morphologies of thin films of the block copolymers cast from different solvents were examined by atomic force microscopy using different casting procedures. Whereas the observed morphologies were similar to those observed in conventional block copolymers, particularly strong dependence on sample preparation conditions and thermal history was observed, suggesting the role of mesogenic blocks in stabilization of metastable states.