PTPDA | 1138835-26-3

• 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: PTPDA
• 英文别名: N-[4-tert-butyl-2,6-bis(1,3-dioxo-2-benzofuran-5-yl)phenyl]-2,2-dimethylpropanamide
• CAS: 1138835-26-3
• 化学式: C₃₁H₂₇NO₇
• 分子量: 525.558
• InChiKey: JMEBZKFLCANTGS-UHFFFAOYSA-N

物化性质

• 熔点：
  292 °C
• 沸点：
  708.4±60.0 °C(predicted)
• 密度：
  1.328±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.2
• 重原子数：
  39
• 可旋转键数：
  5
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.26
• 拓扑面积：
  116
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  N-(4-(tert-butyl)phenyl)pivalamide 在 水 、 silver(I) acetate 、 sodium acetate 、 palladium diacetate 、 sodium hydroxide 作用下， 以 乙酸酐 、 三氟乙酸 为溶剂， 反应 3.0h， 生成 PTPDA
  参考文献：
  名称：

  Novel Aromatic Polyimides Derived from 5′-t-Butyl-2′-pivaloylimino-3,4,3′′,4′′-m-terphenyltetracarboxylic Dianhydride with Potential Application on Gas Separation Processes

  摘要：

  A new family of polyimides having two bulky groups in the central ring of a m-terphenyl moiety has been obtained. These polyimides have been synthesized by reaction of four commercial diamines with the electrophilic monomer, 5'-t-butyl-2'-pivaloylimino-3,4,3 '',4 ''-m-terphenyltetracarboxylic acid dianhydride (PTPDA). This monomer has been obtained by a modern C-H-activated arylation method with good yield and purity. The attained polymers showed T, values ranging from 300 to 430 degrees C, thermal stability > 500 degrees C, and excellent solubility in a broad range of solvents, including tetrahydrofuran. Despite having an amide group, uptake of water was low and comparable to that of classical aromatic polyimides. Mechanical properties of polymer Films were good enough to permit the use of these polyimides oil gas separation applications Ell high pressures. Films obtained by casting offered it good balance of permeability and permselectivity with values close to the Robeson upper-bound, in particular for the O-2/N-2 gas pair.

  DOI：

  10.1021/ma901943j

文献信息

• Novel Aromatic Polyimides Derived from 5′-<i>t</i>-Butyl-2′-pivaloylimino-3,4,3′′,4′′-<i>m</i>-terphenyltetracarboxylic Dianhydride with Potential Application on Gas Separation Processes
  作者：Mariola Calle、Ángel E. Lozano、José G. de La Campa、Javier de Abajo

  DOI：10.1021/ma901943j

  日期：2010.3.9

  A new family of polyimides having two bulky groups in the central ring of a m-terphenyl moiety has been obtained. These polyimides have been synthesized by reaction of four commercial diamines with the electrophilic monomer, 5'-t-butyl-2'-pivaloylimino-3,4,3 '',4 ''-m-terphenyltetracarboxylic acid dianhydride (PTPDA). This monomer has been obtained by a modern C-H-activated arylation method with good yield and purity. The attained polymers showed T, values ranging from 300 to 430 degrees C, thermal stability > 500 degrees C, and excellent solubility in a broad range of solvents, including tetrahydrofuran. Despite having an amide group, uptake of water was low and comparable to that of classical aromatic polyimides. Mechanical properties of polymer Films were good enough to permit the use of these polyimides oil gas separation applications Ell high pressures. Films obtained by casting offered it good balance of permeability and permselectivity with values close to the Robeson upper-bound, in particular for the O-2/N-2 gas pair.