Bis-(4-carboxy-phenyl)-difluor-methan | 1493-52-3

• 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: Bis-(4-carboxy-phenyl)-difluor-methan
• 英文别名: Difluor-bis-(4-carboxy-phenyl)-methan；4-[(4-Carboxyphenyl)-difluoromethyl]benzoic acid
• CAS: 1493-52-3
• 化学式: C₁₅H₁₀F₂O₄
• 分子量: 292.239
• InChiKey: CISTUYKNBSQLSX-UHFFFAOYSA-N

物化性质

• 熔点：
  275 °C (decomp)
• 沸点：
  491.2±45.0 °C(Predicted)
• 密度：
  1.421±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  21
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  4,4'-dichloromethanediyl-di-benzoyl chloride 在 氯化亚砜 、 氢氟酸 、 三乙胺 作用下， 生成 Bis-(4-carboxy-phenyl)-difluor-methan
  参考文献：
  名称：

  Yagupol'skii,L.M. et al., Journal of general chemistry of the USSR, 1962, vol. 32, p. 1814 - 1817

  摘要：

  DOI：

文献信息

• Polybenzazole precursor film, polybenzazole film and method of producing the same
  申请人：Polymatech Co., Ltd.

  公开号：EP1384743A1

  公开（公告）日：2004-01-28

  The first film of the present invention is a film produced by solidifying a polybenzazole precursor that has been oriented in a given direction by the application of a magnetic or electric field. The second film of the present invention is a film produced by solidifying a polybenzazole that has been oriented in a given direction by the application of a magnetic or electric field. The first and second films have a strong anisotropy.

  本发明的第一层薄膜是通过应用磁场或电场使沿给定方向定向的聚苯唑前体固化而制成的薄膜。本发明的第二层薄膜是通过应用磁场或电场使沿给定方向定向的聚苯唑固化而制成的薄膜。第一层和第二层薄膜具有很强的各向异性。
• Article formed of polybenzazole and production method for the same
  申请人：Polymatech Co., Ltd.

  公开号：EP1557440A1

  公开（公告）日：2005-07-27

  An article formed of polybenzazole comprising at least one repeating unit represented by one of specific formulas is provided. In the article, the molecular chains of said polybenzazole are orientated in a specific direction. In one aspect of the article, a degree of orientation A of the molecular chains is 0.6 or more and less than 1. In another aspect of the article, anisotropic magnetic susceptibility Δχ of the article is in a range of 1.0 x 10-8 to 1.0 x 10-6 [emu/g]. The present invention also directs to methods for producing the above-described articles. The methods comprise steps of preparing a liquid containing said polybenzazole, shaping a liquid containing said polybenzazole into a desired shape, applying one of magnetic and electric fields in a specific direction to the liquid so as to orientate the molecular chains of said polybenzazole therein in the specific direction, solidifying the liquid in the desired shape while the orientation of the molecular chains is maintained.

  本发明提供了一种由聚苯甲唑构成的物品，聚苯甲唑包含至少一个由特定公式之一表示的重复单元。在该物品中，所述聚苯唑的分子链按特定方向定向。在物品的一个方面，分子链的取向度 A 为 0.6 或以上且小于 1。在物品的另一个方面，物品的各向异性磁感应强度 Δχ 的范围为 1.0 x 10-8 至 1.0 x 10-6 [emu/g]。本发明还涉及生产上述物品的方法。这些方法包括以下步骤：制备含有所述聚苯唑的液体；将含有所述聚苯唑的液体塑造成所需的形状；向液体施加特定方向的磁场和电场中的一种，以使其中的所述聚苯唑分子链沿特定方向定向；在保持分子链定向的同时，将液体凝固成所需的形状。
• Method of producing a polybenzazole film
  申请人：POLYMATECH CO., LTD.

  公开号：EP1384743B1

  公开（公告）日：2008-01-23
• GAS SEPARATION MEMBRANE
  申请人：CENTRAL GLASS COMPANY, LIMITED

  公开号：EP2716351B1

  公开（公告）日：2016-06-29
• Gas Separation Membrane
  申请人：Central Glass Company, Limited

  公开号：US20140144325A1

  公开（公告）日：2014-05-29

  A gas separation membrane having a polyimide structure. The polyimide structure is provided to contain a repeating unit represented by general formula (1): wherein R 1 is a divalent organic group represented by general formula (2): or a divalent organic group represented by general formula (3):