Ditolylmethandicarbonsaeure | 95280-74-3

• 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: Ditolylmethandicarbonsaeure
• 英文别名: 6,6'-dimethyl-3,3'-methanediyl-di-benzoic acid；6,6'-Dimethyl-3,3'-methandiyl-di-benzoesaeure；5-[(3-Carboxy-4-methylphenyl)methyl]-2-methylbenzoic acid
• CAS: 95280-74-3
• 化学式: C₁₇H₁₆O₄
• 分子量: 284.312
• InChiKey: AODNWNFGAPQLMQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  21
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  对甲苯甲酸 、 聚合甲醛 在 盐酸 、 硫酸 作用下， 生成 Ditolylmethandicarbonsaeure
  参考文献：
  名称：

  Rapid senescence induced by overexpression of p53 in NIH3T3 cells

  摘要：

  An NIH3T3 cell line which overexpresses temperature-sensitive p53Val135 was constructed by introduction of p53Val135 gene, It exhibited rapidly characteristic morphological and biochemical alterations related to replicative senescence when being cultured in 32 degreesC. We suggested that the overexpression of p53 activated probably the onset of senescence in NIH3T3 cells, which induced a rapid cellular senescence.

  DOI：

  10.1007/bf03182827

文献信息

• TREATING AGENT FOR LIQUID CRYSTAL ALIGNMENT LAYER AND LIQUID CRYSTAL DEVICE USING THE SAME, AND METHOD FOR ALIGNMENT OF LIQUID CRYSTAL
  申请人：Nissan Chemical Industries, Ltd.

  公开号：EP1111442A1

  公开（公告）日：2001-06-27

  Object Liquid crystal-alignment agent where uniform liquid alignment of liquid crystals is effectively manifested by the irradiation with light over the liquid crystal alignment film without rubbing treatment of the liquid crystal alignment film thereof, and further manifests liquid crystal alignment with high stability and high light resistance, liquid crystals device with the use of said alignment agent and the method of the liquid crystal alignment by the use of said liquid crystal alignment agent. Constitution Liquid crystal alignment agent where polymer compound having bonds shown in the general formula (1) - (7) below wherein R1, R2 and R3 are independently of each other hydrogen, alkyl, substituted alkyl, aryl or propargyl; in the polymer compound thereof with number-average molecular weight of 1,000 - 300,000, and said bond makes the direct bond with either divalent or trivalent aromatic group at the both ends of said bond or with divalent or trivalent aromatic group making the direct bond at one end while at the other forming the direct bond with divalent or trivalent alicyclic hydrocarbon group, liquid crystal device by the use of said liquid crystal alignment agent and the method of the liquid crystal alignment by the use of said liquid crystal alignment agent.

  目标 无需对液晶对位膜进行摩擦处理，通过对液晶对位膜进行光照射，即可有效实现液晶的均匀液态对位，并进一步实现高稳定性和高耐光性液晶对位的液晶对位剂、使用所述对位剂的液晶装置以及使用所述液晶对位剂的液晶对位方法。 构成 液晶配向剂，其中的聚合物化合物具有以下通式（1）-（7）所示的键 其中 R1、R2 和 R3 相互独立地为氢、烷基、取代烷基、芳基或丙基；在其平均分子量为 1,000 - 300,000 的聚合物化合物中，所述键在所述键的两端与二价或三价芳香族基团直接键合，或在一端与二价或三价芳香族基团直接键合，而在另一端与二价或三价脂环烃基团直接键合，通过使用所述液晶配向剂的液晶装置和通过使用所述液晶配向剂的液晶配向方法。
• High performance facilitated transport membranes for olefin/paraffin separations
  申请人：UOP LLC

  公开号：US10322382B2

  公开（公告）日：2019-06-18

  A high performance facilitated transport membrane comprising a metal cation exchanged/chelated carboxylic acid functional group containing functional polyimide, a method of making this a membrane, and the use of this membrane for olefin/paraffin separations, particularly for propylene/propane and ethylene/ethane separations. The facilitated transport membrane has either an asymmetric integrally skinned membrane structure or a thin film composite membrane structure, wherein the top selective layer of the membrane comprises a metal cation exchanged/chelated carboxylic acid functional group containing functional polyimide.

  一种由含有金属阳离子交换/螯合羧酸官能团的官能聚酰亚胺组成的高性能促进传输膜，一种制造这种膜的方法，以及将这种膜用于烯烃/石蜡分离，特别是用于丙烯/丙烷和乙烯/乙烷分离。促进传输膜具有非对称整体表皮膜结构或薄膜复合膜结构，其中膜的顶层选择层由金属阳离子交换/螯合含羧酸官能团的官能团聚酰亚胺组成。
• Polyimides, coating composition formed therefrom and use thereof
  申请人：Eternal Materials Co., Ltd.

  公开号：US10280334B2

  公开（公告）日：2019-05-07

  A polyimide (PI) having two —COOH capping groups at each end is provided. A coating composition is further provided, which contains the PI and a hardening agent having 2 to 6 functional groups capable of reacting with —COOH. A PI coating layer and PI film formed by the coating composition of the present invention possess excellent chemical resistance and coefficient of thermal expansion (CTE), which makes them applicable in fabrication of protective materials for active/passive devices, optical materials, touch panels, copper foil substrates, soft flexible electronic materials or integrated circuit elements, or film substrate for glass film touch panels.

  提供了一种聚酰亚胺（PI），其两端各有两个-COOH封端基团。本发明还提供了一种涂层组合物，其中包含 PI 和一种具有 2 至 6 个能与 -COOH 反应的官能团的硬化剂。由本发明的涂层组合物形成的 PI 涂层和 PI 薄膜具有优异的耐化学性和热膨胀系数（CTE），因此适用于制造有源/无源器件的保护材料、光学材料、触摸面板、铜箔基板、软挠性电子材料或集成电路元件，或玻璃薄膜触摸面板的薄膜基板。
• Photosensitive polyimide resin composition and method of manufacturing cover film using the same
  申请人：Microcosm Technology CO., LTD

  公开号：US10407549B2

  公开（公告）日：2019-09-10

  A photosensitive polyimide resin composition is provided. The resin composition comprises an infrared absorber, an epoxy, a photosensitive polyimide and a photo initiator. The infrared absorber includes pigment and has an amount of weight accounting for 5-40% of total solid weight of the photosensitive polyimide resin composition. The epoxy has an amount of weight accounting for 5-40% of total solid weight of the photosensitive polyimide resin composition. The photosensitive polyimide has the structure of formula (1): wherein m, n are independently 1 to 600; X is a tetravalent organic group, and the main chain of X includes alicyclic structure; Y is a divalent organic group, and the main chain of Y includes siloxane structure; Z is a divalent organic group, and the side chain of Z includes phenolic hydroxyl group or carboxyl group. The photosensitive polyimide has an amount of weight accounting for 30-90% of total solid weight of the photosensitive polyimide resin composition. The photo initiator has an amount of weight accounting for 0.1-15% of total solid weight of the transparent photosensitive resin.

  提供了一种光敏聚酰亚胺树脂组合物。该树脂组合物由红外线吸收剂、环氧树脂、光敏聚酰亚胺和光引发剂组成。红外线吸收剂包括颜料，其重量占光敏聚酰亚胺树脂组合物固体总重量的 5-40%。环氧树脂的重量占光敏聚酰亚胺树脂组合物固体总重量的 5-40%。光敏聚酰亚胺具有式(1)结构： 其中 m、n 独立地为 1 至 600；X 为四价有机基团，X 的主链包括脂环结构；Y 为二价有机基团，Y 的主链包括硅氧烷结构；Z 为二价有机基团，Z 的侧链包括酚羟基或羧基。光敏聚酰亚胺的重量占光敏聚酰亚胺树脂组合物固体总重量的 30-90%。光引发剂的重量占透明光敏树脂固体总重量的 0.1-15%。
• Modular membrane system and method for olefin separation
  申请人：UOP LLC

  公开号：US10427997B2

  公开（公告）日：2019-10-01

  A membrane process is provided for separating light olefins from light paraffins to produce a polymer grade light olefin product stream that is about 99.5 mol % ethylene or propylene. The process involves multiple stages to achieve the high purity product and provides for processing hydrocarbon streams that have differing concentrations of light olefins.

  提供了一种膜工艺，用于从轻烷烃中分离轻烯烃，以生产聚合物级轻烯烃产品流，该产品流中乙烯或丙烯的含量约为 99.5 摩尔%。该工艺涉及多个阶段以获得高纯度产品，并可处理轻烯烃浓度不同的烃流。