2-氯-4-(4-丙基)苯溴酸 | 41161-57-3

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 缩酚酸和缩酚酸环醚类
• 中文名称: 2-氯-4-(4-丙基)苯溴酸
• 中文别名: 2-氯-4-(4-戊苄氧基)苯甲酸4-辛苯酯
• 英文名称: 4-octylphenyl 2-chloro-4-(4-heptylbenzoyloxy)benzoate
• 英文别名: Benzoic acid, 2-chloro-4-[(4-heptylbenzoyl)oxy]-, 4-octylphenyl ester；(4-octylphenyl) 2-chloro-4-(4-heptylbenzoyl)oxybenzoate
• CAS: 41161-57-3
• 化学式: C₃₅H₄₃ClO₄
• 分子量: 563.177
• InChiKey: PVPLJWOWXVOSPP-UHFFFAOYSA-N

物化性质

• 熔点：
  41°C
• 沸点：
  667.0±55.0 °C(Predicted)
• 密度：
  1.1069 (estimate)

计算性质

• 辛醇/水分配系数(LogP)：
  12.9
• 重原子数：
  40
• 可旋转键数：
  19
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 海关编码：
  2918990090

文献信息

• Liquid crystal display device
  申请人：Philips Electronics N.V.

  公开号：EP0036678A1

  公开（公告）日：1981-09-30

  In a matrix display device having a cholesteric liquid crystal the bistability effect is used which some cholesteric liquid crystals show. The liquid crystal shows a frequency-dependent relaxation of a positive to a negative dielectric anisotropy. After writing the information the light-scattering picture elements have a focal-conical texture (B) and the transparent elements have a homeotropic-nematic texture (C, D). The information can be stored for a longer period of time by causing the homeotropic-nematic texture of the transparent elements to change into the substantially transparent planar-conical texture (A). This is produced rapidly by applying across all picture elements a voltage of a frequency at which the liquid crystal has a negative dielectric anisotropy. The focal-conical texture of the light-scattering elements is substantially not disturbed by said voltage. During the presence of said voltage the written information is continuously visible.

  在具有胆甾液晶的矩阵显示设备中，使用了某些胆甾液晶所显示的双稳态效应。液晶显示出从正介电各向异性到负介电各向异性的频率弛豫。写入信息后，光散射图像元件具有焦锥纹理 (B)，而透明元件则具有各向同性-向列性纹理 (C、D)。通过使透明元件的各向同性-向列性纹理转变为基本透明的平面-锥形纹理（A），可以将信息存储更长时间。这可以通过在所有图像元件上施加一个频率为液晶具有负介电各向异性的电压来快速实现。光散射元件的焦锥形纹理基本上不受上述电压的干扰。在上述电压存在期间，所书写的信息是持续可见的。
• Cleaning compositions and applications thereof
  申请人：NAGASE & COMPANY, LTD.

  公开号：EP0419089A1

  公开（公告）日：1991-03-27

  A cleaning composition which comprises dimethylcyclooctadiene together with a method of cleaning printed circuit boards or printed wiring boards, which comprises: contacting the board with a composition comprising dimethylcyclooctadiene and 2-20 % by weight of a surfactant; rinsing the board with water; and drying the board.

  一种包含二甲基环辛二烯的清洁组合物，以及一种清洁印刷电路板或印刷线路板的方法，其中包括：将电路板与包含二甲基环辛二烯和 2-20%（重量）表面活性剂的组合物接触；用水冲洗电路板；以及干燥电路板。
• PROCÉDÉ D'ÉLABORATION D'UN MATÉRIAU À CRISTAUX LIQUIDES À BANDE DE RÉFLEXION DE LA LUMIÈRE ÉLARGIE
  申请人：Centre National de la Recherche Scientifique (CNRS)

  公开号：EP1922386B1

  公开（公告）日：2009-11-11
• PROCÉDÉ D'ÉLABORATION D'UN MATÉRIAU À CRISTAUX LIQUIDES RÉFLÉCHISSANT PLUS DE 50% D'UNE LUMIÈRE INCIDENTE NON POLARISÉE
  申请人：CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)

  公开号：EP1922385B1

  公开（公告）日：2009-08-12
• Liquid crystal composition, liquid crystal element, and cross-linked siloxane polymer
  申请人：Takaku Koji

  公开号：US20070007492A1

  公开（公告）日：2007-01-11

  The present invention provides a liquid crystal composition obtained by dissolving a dichroic dye in a mixture of a cross-linked polymer having a liquid crystalline group in the side chains and a low molecular weight liquid crystal, and preferably the cross-linked polymer is a cross-linked siloxane polymer having a liquid crystalline group in the side chains, and the dielectric constant anisotropy of the liquid crystal composition is changed from positive to negative by increasing the frequency of the voltage to be applied. The present invention further provides a liquid crystal element containing the liquid crystal composition and a cross-linked siloxane polymer preferably usable for the liquid crystal composition.

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