3-(三氟甲基)苯-1,2,4,5-四羧酸 | 53812-59-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 3-(三氟甲基)苯-1,2,4,5-四羧酸
• 英文名称: 1-Trifluormethyl-2.3.5.6-benzoltetracarbonsaeure
• 英文别名: 3-(Trifluoromethyl)benzene-1,2,4,5-tetracarboxylic acid
• CAS: 53812-59-2
• 化学式: C₁₁H₅F₃O₈
• 分子量: 322.151
• InChiKey: NJCOLSAFYMXOGO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.09
• 拓扑面积：
  149
• 氢给体数：
  4
• 氢受体数：
  11

反应信息

• 作为反应物：
  描述：

  3-(三氟甲基)苯-1,2,4,5-四羧酸 生成 pentakis(trifluoromethyl)benzene
  参考文献：
  名称：

  Lukmanov,V.G. et al., Journal of Organic Chemistry USSR (English Translation), 1974, vol. 10, p. 2019

  摘要：

  DOI：
• 作为产物：
  描述：

  3-碘-1,2,4,5-四甲基苯 在 铜 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 3-(三氟甲基)苯-1,2,4,5-四羧酸
  参考文献：
  名称：

  Lukmanov,V.G. et al., Journal of Organic Chemistry USSR (English Translation), 1974, vol. 10, p. 2019

  摘要：

  DOI：

文献信息

• Liquid crystal device
  申请人：CANON KABUSHIKI KAISHA

  公开号：EP0400635A2

  公开（公告）日：1990-12-05

  A liquid crystal device is formed by applying an alignment film comprising a fluorine-containing polyimide having a fluorine-containing substituent in its moiety originated from a diamine on at least one of a pair of substrates sandwiching a chiral smectic liquid crystal. Preferably, the respective substrates are provided with such fluorine-containing polyimide alignment films which have been rubbed in directions which are substantially parallel with each other and identical to each other or which intersect each other at a small counter-clockwise intersection angle. The liquid crystal device thus formed shows a high contrast display, particularly by multiplexing drive, free from after-image because of quick responsiveness.

  一种液晶装置是通过在夹有手性平滑液晶的一对基板中的至少一个上涂敷由含氟聚酰亚胺组成的对位膜而形成的，该聚酰亚胺的分子中具有源于二胺的含氟取代基。最好是在各自的基片上提供这样的含氟聚酰亚胺对位膜，这些对位膜的摩擦方向基本上相互平行且彼此相同，或者以很小的逆时针交角相交。这样形成的液晶装置显示对比度高，特别是通过多路复用驱动，由于反应迅速，没有残影。
• Carboxylic acid anhydride complexes and their preparation and use
  申请人：HITACHI, LTD.

  公开号：EP0429775A2

  公开（公告）日：1991-06-05

  The invention relates to carboxylic acid anhydride complexes and particularly to carboxylic acid dianhydride complexes which are characterized by high hydrolysis and thermal stability and high solubility in organic solvents. They are prepared by reaction of electron donor compound having a donor number of at least 20 and being free from active hydrogen atoms in the molecule and a carboxylic acid anhydride compound. The invention relates also to compositions, varnishes and resins containing these complexes, and their use, particularly for the preparation of polyamic acides and polyimides.

  本发明涉及羧酸酐络合物，特别是羧酸二酐络合物，其特点是水解稳定性和热稳定性高，在有机溶剂中的溶解度高。它们是由电子供体化合物与羧酸酐化合物反应制备的，电子供体化合物的供体数至少为 20，且分子中不含有活泼氢原子。本发明还涉及含有这些复合物的组合物、清漆和树脂及其用途，特别是用于制备聚酰胺和聚酰亚胺。
• Polyimide optical waveguide and method of manufacturing the same
  申请人：NIPPON TELEGRAPH AND TELEPHONE CORPORATION

  公开号：EP0616234A2

  公开（公告）日：1994-09-21

  A polyimide optical waveguide comprising a core (2) made of polyimide whose refractive index is controlled to a predetermined value by electron beam irradiation, and a cladding (1, 3) set in contact with the core and having a refractive index lower than that of the core. A polyamic acid solution is spin-coated on a substrate such as of silicon, and is thermally cured to form a polyimide layer. An electron beam is irradiated on the entire surface of the polyimide layer to change the refractive index to a predetermined value. An electron beam-absorbed dose of the polyimide layer depends on the composition of the polyimide, an energy of the electron beam, and the applied amount of the electron beam irradiation. The refractive index changes in accordance therewith approximately. This polyimide layer irradiated with the electron beam is used as a core layer. Next, the same polyamic acid solution is spin-coated on the core layer, and is thermally cured. The material is separated from the substrate to obtain a polyimide film of a two-layer structure. Then, the polyimide film of a two-layer structure is made to reverse and the irradiated polyimide layer is made to the upper surface. The lower surface of the reversed film is adhered by a method such as a thermo-compression bonding on the other silicon substrate. Next, the core layer is patterned into a desired shape, for example, a rectangular shape, by RIE (reactive ion etching) method. Finally, the same polyamic acid solution is spin-coated over the patterned core layer, as an upper cladding lacer, and is thermally cured, thereby preparing an embedded channel waveguide.

  一种聚酰亚胺光波导，包括一个由聚酰亚胺制成的芯子（2），其折射率可通过电子束辐照控制到预定值；以及一个与芯子接触的包层（1，3），其折射率低于芯子的折射率。 将聚酰胺酸溶液旋涂在硅等基底上，并通过热固化形成聚酰亚胺层。电子束照射聚酰亚胺层的整个表面，使折射率变为预定值。聚酰亚胺层的电子束吸收剂量取决于聚酰亚胺的成分、电子束的能量和电子束辐照的应用量。折射率大致随之变化。 经电子束辐照的聚酰亚胺层被用作核心层。 然后，在芯层上旋涂相同的聚酰胺酸溶液，并进行热固化。材料与基底分离，得到双层结构的聚酰亚胺薄膜。 然后，将双层结构的聚酰亚胺薄膜反转，使辐照聚酰亚胺层位于上表面。反转薄膜的下表面通过热压接合等方法粘附在另一块硅衬底上。 然后，用 RIE（反应离子蚀刻）方法将芯层图案化为所需的形状，例如矩形。 最后，将相同的聚酰胺酸溶液旋涂在图案化的芯层上，作为上覆层，并进行热固化，从而制备出嵌入式通道波导。
• Optical waveplate, method of manufacturing the same, and waveguide device using the same
  申请人：NIPPON TELEGRAPH AND TELEPHONE CORPORATION

  公开号：EP0623830A1

  公开（公告）日：1994-11-09

  An optical waveplate includes a polyimide with a film thickness of 20 µm or less.

  光波板包括薄膜厚度为 20 微米或更薄的聚酰亚胺。
• Liquid ink, method for image formation using the ink, and ink jet printer
  申请人：HITACHI, LTD.

  公开号：EP0694594A2

  公开（公告）日：1996-01-31

  Provided are an ink high in fixability of image, water resistance and solvent resistance though it is a liquid ink containing water as a solvent and a quick-drying ink jet printer which uses said ink. The liquid ink of the present invention is a liquid ink used for ink jet printers which contains a binder, a colorant and a solvent, characterized in that it contains at least 10% by weight of water and the binder comprises a polyamic acid salt or at least one species of photo-curable resin. The ink jet printer is characterized by being provided with a device for fixing the image formed on a paper by heating or light irradiation. Although water is used as the solvent, the image can be more rapidly fixed as compared with air-drying of the image and, besides, there are no risks of fire caused by ignition. Thus, the ink jet printer of the present invention is useful for use in offices.

  本发明提供了一种虽然是含水作为溶剂的液体墨水，但具有高图像固定性、耐水性和耐溶剂性的墨水，以及使用所述墨水的快干喷墨打印机。本发明的液体墨水是一种用于喷墨打印机的液体墨水，它含有粘合剂、着色剂和溶剂，其特征在于，按重量计，它至少含有 10%的水，粘合剂包括聚酰胺酸盐或至少一种光固化树脂。喷墨打印机的特点是配有一个装置，用于通过加热或光照射固定在纸上形成的图像。虽然使用水作为溶剂，但与风干图像相比，可以更快地固定图像，而且没有因点火而引起火灾的危险。因此，本发明的喷墨打印机适用于办公室。