4,4'-(1,3,4-oxadiazole-2,5-diyl)diphthalic anhydride | 30014-70-1

• 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: 4,4'-(1,3,4-oxadiazole-2,5-diyl)diphthalic anhydride
• 英文别名: 5-[5-(1,3-Dioxo-2-benzofuran-5-yl)-1,3,4-oxadiazol-2-yl]-2-benzofuran-1,3-dione；5-[5-(1,3-dioxo-2-benzofuran-5-yl)-1,3,4-oxadiazol-2-yl]-2-benzofuran-1,3-dione
• CAS: 30014-70-1
• 化学式: C₁₈H₆N₂O₇
• 分子量: 362.255
• InChiKey: NKXNMQPTIPEXSQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  27
• 可旋转键数：
  2
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  126
• 氢给体数：
  0
• 氢受体数：
  9

反应信息

• 作为产物：
  描述：

  偏苯三酸酐 在 硫酸 、 硫酸肼 作用下， 以26.7 %的产率得到4,4'-(1,3,4-oxadiazole-2,5-diyl)diphthalic anhydride
  参考文献：
  名称：

  Non-linear high Tg polyimide-based membranes for separating CO2/CH4 gas mixtures

  摘要：

  DOI：

  10.1016/j.polymer.2022.125520

文献信息

• Optical compensation film having reversed wavelength dispersion
  申请人：Akron Polymer Systems, Inc.

  公开号：US10125250B2

  公开（公告）日：2018-11-13

  Disclosed is an optical compensation film made of a solution cast of a polymer blend comprising a nitrated styrenic fluoropolymer and a polyimide. The compensation film is a positive-C plate having reversed wavelength dispersion that is capable of providing an achromatic (or broadband) retardation compensation. The optical film of the invention can be used in an optical device such as liquid crystal display (LCD) or organic light emitting diode (OLED) display.

  本发明公开了一种光学补偿膜，它是由硝化苯乙烯含氟聚合物和聚酰亚胺组成的聚合物混合物的溶液浇铸而成。该补偿膜是一种具有反向波长色散的正 C 板，能够提供消色差（或宽带）延迟补偿。本发明的光学薄膜可用于液晶显示器（LCD）或有机发光二极管（OLED）显示器等光学设备中。
• Multilayer optical compensation film having reversed wavelength dispersion
  申请人：Akron Polymer Systems, Inc.

  公开号：US10126479B2

  公开（公告）日：2018-11-13

  Disclosed is a multilayer optical compensation film comprising a first layer comprising a positive C-plate material and a second layer comprising a polyimide, as well as polymer compositions and resins and solutions containing said polymer compositions. The optical compensation film has a reversed wavelength dispersion that is capable of providing an achromatic (or broadband) retardation compensation. The optical film can be used in optical devices such as liquid crystal displays (LCD) or organic light emitting diode (OLED) displays.

  本发明公开了一种多层光学补偿膜，包括由正 C 板材料组成的第一层和由聚酰亚胺组成的第二层，以及聚合物组合物、树脂和含有上述聚合物组合物的溶液。光学补偿膜具有反向波长色散，能够提供消色差（或宽带）延迟补偿。该光学膜可用于液晶显示器（LCD）或有机发光二极管（OLED）显示器等光学设备中。
• OPTICAL COMPENSATION FILM HAVING REVERSED WAVELENGTH DISPERSION
  申请人：Akron Polymer Systems, Inc.

  公开号：EP3497492B1

  公开（公告）日：2021-12-08
• MULTILAYER OPTICAL COMPENSATION FILM HAVING REVERSED WAVELENGTH DISPERSION
  申请人：Akron Polymer Systems, Inc.

  公开号：EP3496941A1

  公开（公告）日：2019-06-19
• [EN] OPTICAL COMPENSATION FILM HAVING REVERSED WAVELENGTH DISPERSION<br/>[FR] FILM OPTIQUE DE COMPENSATION COMPORTANT UNE DISPERSION INVERSE DE LONGUEURS D'ONDE
  申请人：AKRON POLYMER SYSTEMS INC

  公开号：WO2018031853A1

  公开（公告）日：2018-02-15

  Disclosed is an optical compensation film made of a solution cast of a polymer blend comprising a nitrated styrenic fluoropolymer and a polyimide. The compensation film is a positive-C plate having reversed wavelength dispersion that is capable of providing an achromatic (or broadband) retardation compensation. The optical film of the invention can be used in an optical device such as liquid crystal display (LCD) or organic light emitting diode (OLED) display.