Diphenyl-α,α-difluormethan-tetracarbonsaeureanhydrid | 38845-77-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: Diphenyl-α,α-difluormethan-tetracarbonsaeureanhydrid
• 英文别名: 5-[(1,3-Dioxo-2-benzofuran-5-yl)-difluoromethyl]-2-benzofuran-1,3-dione
• CAS: 38845-77-1
• 化学式: C₁₇H₆F₂O₆
• 分子量: 344.228
• InChiKey: ZNGQUPPCRNKGAR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  25
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  86.7
• 氢给体数：
  0
• 氢受体数：
  8

文献信息

• Polyimide resin, method of producing polyimide resin, and electrolyte membrane, catalyst layer, membrane/electrode assembly and device each containing polyimide resin
  申请人：Watanabe Masahiro

  公开号：US20070106057A1

  公开（公告）日：2007-05-10

  A polyimide resin having a basic skeleton represented by the following general formula: (in the formula (1), each of Ar 1 and Ar 2 is an aromatic ring having a carbon number of 6-20, which forms an imide ring of 5 or 6 atoms with an imide group adjoining thereto. In the aromatic ring, a part of carbon atoms may be substituted with S, N, 0, SO 2 or CO, or a part of hydrogen atoms may be substituted with an aliphatic group, a halogen atom or a perfluoro aliphatic group. Ar 1 and Ar 2 may be same or different. R is at least one of linear alkylene group and branched alkylene group having a carbon number of 1-20. Ar 3 is an aromatic ring having a carbon number of 6-20 in which at least a part of hydrogen atoms is substituted with at least one of sulfoalkoxy group, carboalkoxy group and phosphoalkoxy group having a carbon number of 1-20 and a part of carbon atoms in these groups may be substituted with S, N, 0, SO 2 or CO, or a part of hydrogen atoms may be substituted with an aliphatic group, a halogen atom or a perfluoro aliphatic group. n and m show a polymerization degree and are an integer of not less than 2.)