4-戊基苯基-2-氯-4-(4-戊苄氧基)苯甲酸 | 41161-53-9

• 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: 4-戊基苯基-2-氯-4-(4-戊苄氧基)苯甲酸
• 英文名称: p-pentylphenyl-2-chloro-4-(p-pentylbenzoyloxy)benzoate
• 英文别名: 4-Pentylphenyl 2-chloro-4-(4-pentyl-benzoyloxy)benzoate；(4-pentylphenyl) 2-chloro-4-(4-pentylbenzoyl)oxybenzoate
• CAS: 41161-53-9
• 化学式: C₃₀H₃₃ClO₄
• 分子量: 493.043
• InChiKey: SJIINSFMAXEDIM-UHFFFAOYSA-N

物化性质

• 熔点：
  39-122 °C
• 沸点：
  591.83°C (rough estimate)
• 密度：
  1.0375 (rough estimate)
• 稳定性/保质期：
  遵照规定使用和储存，则不会分解。

计算性质

• 辛醇/水分配系数(LogP)：
  10.2
• 重原子数：
  35
• 可旋转键数：
  14
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.333
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 安全说明：
  S24/25
• 海关编码：
  2918990090

反应信息

• 作为产物：
  描述：

  2-氯-4-羟基苯甲酸 4-戊基苯基酯 以 吡啶 为溶剂， 以84%的产率得到4-戊基苯基-2-氯-4-(4-戊苄氧基)苯甲酸
  参考文献：
  名称：

  P-Benzoyloxybenzoate

  摘要：

  由取代苯基对苯甲酸苯甲酯组成的液晶材料在电光元件中非常有用。这些材料具有低的晶体向介相转变温度，并具有广泛的介相温度范围。

  公开号：

  US03971824A1

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。
• Switchable volume hologram materials and devices
  申请人：——

  公开号：US20040089842A1

  公开（公告）日：2004-05-13

  A new photopolymerizable material allows single-step, fast recording of volume holograms with properties that can be electrically controlled. Polymer-dispersed liquid crystals (PDLCs) in accordance with the invention preferably comprise a homogeneous mixture of a nematic liquid crystal and a multifunctional pentaacrylate monomer, in combination with photoinitiator, coinitiator and cross-linking agent. Optionally, a surfactant such as octanoic acid may also be added. The PDLC material is exposed to coherent light to produce an interference pattern inside the material. Photopolymerization of the new PDLC material produces a hologram of clearly separated liquid crystal domains and cured polymer domains. Volume transmission gratings made with the new PDLC material can be electrically switched between nearly 100% diffraction efficiency and nearly 0% diffraction efficiency. By increasing the frequency of the switching voltage, switching voltages in the range of 50 Vrms can be achieved. The optional use of surfactant allows low switching voltages at lower frequencies than without surfactant. In an alternative embodiment, a PDLC material in accordance with the invention can be utilized to form reflection gratings, including switchable reflection gratings. In still further embodiments, a PDLC material in accordance with the invention can be used to form switchable subwavelength gratings. By further processing, static transmission reflection, and subwavelength PDLC materials can be formed.

  一种新的可光聚合材料可以单步快速记录体积全息图，其特性可通过电学控制。根据本发明，聚合物分散液晶（PDLC）最好由向列液晶和多功能五丙烯酸酯单体的均质混合物，以及光引发剂、共引发剂和交联剂组成。也可选择添加辛酸等表面活性剂。将 PDLC 材料置于相干光下，在材料内部产生干涉图案。新型 PDLC 材料经过光聚合后，会产生由清晰分离的液晶畴和固化聚合物畴组成的全息图。使用新型 PDLC 材料制作的体透射光栅可以在近 100% 的衍射效率和近 0% 的衍射效率之间进行电气切换。通过提高开关电压的频率，可实现 50 Vrms 范围内的开关电压。与不使用表面活性剂相比，可选择使用表面活性剂，以较低的频率实现较低的开关电压。在另一个实施方案中，根据本发明的 PDLC 材料可用于形成反射光栅，包括可切换反射光栅。在更进一步的实施方案中，根据本发明的 PDLC 材料可用于形成可切换的亚波长光栅。通过进一步加工，可形成静态透射反射和亚波长 PDLC 材料。
• Electrically switchable polymer-dispersed liquid crystal materials including switchable optical couplers and reconfigurable optical interconnects
  申请人：Natarajan V. Lalgudi

  公开号：US20050007639A1

  公开（公告）日：2005-01-13

  A new photopolymerizable material allows single-step, fast recording of volume holograms with properties that can be electrically controlled. Polymer-dispersed liquid crystals (PDLCs) in accordance with the invention preferably comprise a homogeneous mixture of a nematic liquid crystal and a multifunctional pentaacrylate monomer in combination with photoinitiator, coinitiator and cross-linking agent. Optionally, a surfactant such as octancic acid may also be added. The PDLC material is exposed to coherent light to produce an interference pattern inside the material. Photopolymerization of the new PDLC material produces a hologram of clearly separated liquid crystal domains and cured polymer domains. Volume transmission gratings made with the new PDLC material can be electrically switched between nearly 100% diffraction efficiency and nearly 0% diffraction efficiency. By increasing the frequency of the switching voltage, switching voltages in the range of 50 Vrms can be achieved. The optional use of a surfactant allows low switching voltages at lower frequencies than without a surfactant. In an alternative embodiment, a PDLC material in accordance with the invention can be utilized to form reflection gratings, including switchable reflection gratings. In still further embodiments, a PDLC material in accordance with the invention can be used to form switchable subwavelength gratings. By further processing, static transmission, reflection, and subwavelength PDLC materials can be formed. In addition, PDLC materials in accordance with the present invention can be used to form switchable slanted transmission gratings suitable for switchable optical coupling and reconfigurable optical interconnects.

  一种新的可光聚合材料可单步快速记录体积全息图，其特性可通过电学控制。根据本发明，聚合物分散液晶（PDLC）最好由向列液晶和多功能五丙烯酸酯单体的均匀混合物与光引发剂、共引发剂和交联剂组成。也可选择添加辛酸等表面活性剂。将 PDLC 材料置于相干光下，在材料内部产生干涉图案。新型 PDLC 材料经过光聚合后，会产生由清晰分离的液晶畴和固化聚合物畴组成的全息图。使用新型 PDLC 材料制作的体透射光栅可以在近 100% 的衍射效率和近 0% 的衍射效率之间进行电气切换。通过提高开关电压的频率，可实现 50 Vrms 范围内的开关电压。与不使用表面活性剂相比，可选使用表面活性剂可在较低频率下实现较低的开关电压。在另一个实施方案中，根据本发明的 PDLC 材料可用于形成反射光栅，包括可切换反射光栅。在更进一步的实施方案中，根据本发明的 PDLC 材料可用于形成可切换的亚波长光栅。通过进一步加工，可形成静态透射、反射和亚波长 PDLC 材料。此外，根据本发明的 PDLC 材料可用于形成可切换的斜透射光栅，适用于可切换光学耦合和可重构光学互连。
• SWITCHABLE VOLUME HOLOGRAM MATERIALS AND DEVICES
  申请人：SCIENCE APPLICATIONS INTERNATIONAL CORPORATION

  公开号：EP0958329A1

  公开（公告）日：1999-11-24
• EP0958329A4
  申请人：——

  公开号：EP0958329A4

  公开（公告）日：1999-11-24

表征谱图