4-methacryloyloxy azobenzene

• 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-methacryloyloxy azobenzene
• 英文别名: p-methacryloyloxy azobenzene；4-methacryloxy-azobenzene；MPA-Azo；MOAB；4-Methacryloyloxyazobenzene；(4-phenyldiazenylphenyl) 2-methylprop-2-enoate
• 化学式: C₁₆H₁₄N₂O₂
• 分子量: 266.299
• InChiKey: IGCJKJTYHIDZJN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  51
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  甲基丙烯酰氯 、 4-N-苯基苯酰胺 在 三乙胺 作用下， 以 氯仿 为溶剂， 反应 12.0h， 以75%的产率得到4-methacryloyloxy azobenzene
  参考文献：
  名称：

  A facile photopolymerization method for fabrication of pH and light dual reversible stimuli-responsive surfaces

  摘要：

  这项研究提出了一种简单且便捷的两阶段光聚合方法，用于制备pH和光双重可逆刺激响应表面。

  DOI：

  10.1039/c4cc10441b

文献信息

• [EN] ENCAPSULATES<br/>[FR] PRODUITS ENCAPSULÉS
  申请人：PROCTER & GAMBLE

  公开号：WO2013022949A1

  公开（公告）日：2013-02-14

  The present application relates to encapsulates, compositions, products comprising such encapsulates, and processes for making and using such encapsulates. Such encapsulates comprise a core comprising a perfume and a shell that encapsulates said core, such encapsulates may optionally comprise a parametric balancing agent, such shell comprising one or more azobenzene moieties.

  本申请涉及封装体、组合物、包含这种封装体的产品，以及制备和使用这种封装体的方法。这种封装体包括一个包含香水的核心和封装该核心的壳，这种封装体可以选择性地包含一个参数平衡剂，该壳包括一个或多个偶氮苯基团。
• Preparation of Photoirradiation Molecular Imprinting Polymer for Selective Separation of Branched Cyclodextrins
  作者：Haoran Fan、Jinpeng Wang、Qingran Meng、Xueming Xu、Tianming Fan、Zhengyu Jin

  DOI：10.3390/molecules22020288

  日期：——

  In the present study, photoirradiation molecularly imprinted polymer (MIP) with azobenzene was used as a functional monomer for the selective separation of the branched cyclodextrins. The functional monomer 4-methacryloyloxy azobenzene (MAA) and the molecular template 6-O-α-d-maltosyl-β-cyclodextrin (G2-β-CD) were implemented for the molecular imprinting. The core-shell structure of photoirradiation

  在本研究中，具有偶氮苯的光辐照分子印迹聚合物（MIP）被用作选择性分离支链环糊精的功能单体。实施了功能单体4-甲基丙烯酰氧基偶氮苯（MAA）和分子模板6-O-α-d-麦芽糖基-β-环糊精（G2-β-CD）的分子印迹。通过透射电子显微镜（TEM）观察到光辐照MIP的核-壳结构。使用傅立叶变换红外光谱（FTIR）和热重分析（TGA），我们确定G2-β-CD被印在聚合物中并从MIP中移出。结合缔合常数（Ka）和最大结合位点数（Nmax）分别为1.72×10 -4 M-1和7.93μmol·g-1 MIP。在365和440 nm的光下交替照射，制备的MIP可逆地释放并反弹到G2-β-CD，这导致溶液中G2-β-CD的量几乎为零。HPLC结果表明，经过MIP处理后，G2-β-CD的纯度可达90.8％。我们研究的主要发现是MIP的光照射是一种选择性分离支链环糊精的简便有效的方法。
• POLYMERIZABLE YELLOW DYE FOR MANUFACTURING OPHTHALMIC LENS
  申请人：BenQ Materials Corporation

  公开号：US20140378672A1

  公开（公告）日：2014-12-25

  A polymerizable yellow dye which is used to block or lower the intensity of blue light transmitted through ophthalmic lenses and is represented by the following formula (I): wherein R 1 is hydrogen or —NHCOCH 3 ; R 2 is hydrogen or C 1 -C 3 alkyl groups; R 3 and R 4 are independently hydrogen or —OCO—R 5 , wherein R 5 is isopropenyl group or a substituted isopropenyl group represented as —R 6 —(R 7 O) n —COC(CH 3 )CH 2 , R 6 is NH or R 7 is C 1 -C 5 alkylene groups and n is an integer of 1-40.

  一种可聚合的黄色染料，用于阻挡或降低透过眼镜的蓝光强度，其化学式如下（I）：其中R1是氢或—NHCO ；R2是氢或C1-C3烷基基团；R3和R4独立地是氢或—OCO—R5，其中R5是异丙烯基或表示为—R6—（R7O）n—COC(CH3)CH2的取代异丙烯基，R6是NH或R7是C1-C5烷基基团，n为1-40的整数。
• Light-triggered enhancement of mechanical properties and healing effect in azobenzene-based polymer films
  作者：Paraskevi Christogianni、Mohammed Moniruzzaman、Guillaume Kister

  DOI：10.1016/j.polymer.2015.09.022

  日期：2015.10

  One of the disadvantages of using polymers for outdoor applications is the photo-degradation which deteriorates their mechanical properties eventually leading to structural failure. Therefore, rather than a loss of mechanical properties in polymer structures under UV exposure, it would be an accomplishment if the mechanical properties could be enhanced to improve the structural integrity of polymeric structures. This study examines the photomechanical property enhancement in a series of photo-responsive copolymers of methyl methacrylate and methacryloyloxy azobenzene (MOAB) with azobenzene chromophores in the side chains, using nanoindentation. We assume the effect of chromophore concentrations enhances the photomechanical properties. We found that a maximum increase in stiffness of 19% can be achieved with an optimum loading of 30% mol azobenzene. Such an enhancement in stiffness was attributed to photoinduced reorganization of the polymer chains due to the isomerisation of the azobenzene chromophores. UV/Vis spectroscopy of the polymer films suggested that the trans isomer of azobenzene was converted to the cis form within 7 min of exposure to UV light, whereas the reversion from the cis to the trans isomer was achieved within 1 min by visible light. Analysis of the indented thin films by optical microscopy demonstrated healing of the indented region by UV light suggesting that this polymer can be used as self-healing material. (C) 2015 Elsevier Ltd. All rights reserved.