2,5-bis(2-ethylhexyloxy)terephthalic acid | 260992-23-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,5-bis(2-ethylhexyloxy)terephthalic acid
• 英文别名: 2,5-Bis(2-ethylhexoxy)terephthalic acid
• CAS: 260992-23-2
• 化学式: C₂₄H₃₈O₆
• 分子量: 422.562
• InChiKey: SYTZYLBZUHXEOO-UHFFFAOYSA-N

物化性质

• 沸点：
  558.0±50.0 °C(predicted)
• 密度：
  1.071±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.2
• 重原子数：
  30
• 可旋转键数：
  16
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  93.1
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2,5-bis(2-ethylhexyloxy)terephthalic acid 在 氯化亚砜 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 24.0h， 生成 2,5-bis(2-ethylhexyloxy)benzene-1,4-dioyl dichloride
  参考文献：
  名称：

  Synthesis of a polyoxadiazole containing the 4-hydroxypyridine group and photo-induced fluorescent imaging on the polymer film

  摘要：

  A polyoxadiazole containing the 4-hydroxypyridine group, introduced to enhance the intermolecular interaction between polymer chains as well as for photosensitization, was synthesized from a corresponding precursor polyhydrazide. The absorption and emission spectra of the polymer film exhibited red-shifted maxima compared to those of the polyoxadiazole in chloroform solution, indicative of the presence of significant intermolecular interactions. The synthesized polymer showed a unique fluorescence enhancement upon UV irradiation in solution as well as in the film, presumably due to the photosensitized oxidation of hydroxypyridine groups to produce pyridone structures having different intermolecular interactions. Thus, this phenomenon enabled us to obtain a stable patterned image with enhanced fluorescence intensity in the UV-exposed area of the polymer film without any subsequent processes such as baking or etching. (c) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.reactfunctpolym.2009.12.003
• 作为产物：
  描述：

  diethyl 2,5-bis(2-ethylhexyloxy)terephthalate 在 potassium hydroxide 、 盐酸 作用下， 以 水 为溶剂， 反应 24.0h， 以94%的产率得到2,5-bis(2-ethylhexyloxy)terephthalic acid
  参考文献：
  名称：

  Synthesis of a polyoxadiazole containing the 4-hydroxypyridine group and photo-induced fluorescent imaging on the polymer film

  摘要：

  A polyoxadiazole containing the 4-hydroxypyridine group, introduced to enhance the intermolecular interaction between polymer chains as well as for photosensitization, was synthesized from a corresponding precursor polyhydrazide. The absorption and emission spectra of the polymer film exhibited red-shifted maxima compared to those of the polyoxadiazole in chloroform solution, indicative of the presence of significant intermolecular interactions. The synthesized polymer showed a unique fluorescence enhancement upon UV irradiation in solution as well as in the film, presumably due to the photosensitized oxidation of hydroxypyridine groups to produce pyridone structures having different intermolecular interactions. Thus, this phenomenon enabled us to obtain a stable patterned image with enhanced fluorescence intensity in the UV-exposed area of the polymer film without any subsequent processes such as baking or etching. (c) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.reactfunctpolym.2009.12.003

文献信息

• Polymer dye and method for producing the same and its use in light-emitting diodes and other optical components
  申请人：——

  公开号：US20040256981A1

  公开（公告）日：2004-12-23

  A method and apparatus for the removal of free, emulsified, or dissolved water from liquids of low volatility, such as oil, is shown. The liquid of low volatility is removed by contacting the fluid stream of concern with one side of a semi-permeable membrane. The membrane divides a separation chamber into a feed side into which the stream of fluid is fed, and a permeate side from which the water is removed. The permeate side of the chamber is maintained at a low partial pressure of water through presence of vacuum, or by use of a sweep gas.