N,N'-1,4-phenylenebis[4-(2,5-dihydro-3-methyl-2,5-dioxo-1H-pyrrol-1-yl)]benzamide | 138896-02-3

• 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: N,N'-1,4-phenylenebis[4-(2,5-dihydro-3-methyl-2,5-dioxo-1H-pyrrol-1-yl)]benzamide
• 英文别名: N-[4-[[hydroxy-[4-(3-methyl-2,5-dioxopyrrol-1-yl)phenyl]methylidene]amino]phenyl]-4-(3-methyl-2,5-dioxopyrrol-1-yl)benzenecarboximidic acid
• CAS: 138896-02-3
• 化学式: C₃₀H₂₂N₄O₆
• 分子量: 534.528
• InChiKey: MYSJRYMXFJEBHC-UHFFFAOYSA-N

物化性质

• 沸点：
  645.8±50.0 °C(Predicted)
• 密度：
  1.465±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  40
• 可旋转键数：
  6
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  133
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  4-citraconimidobenzoic acid chloride 、 对苯二胺 在 吡啶 作用下， 以 二氯甲烷 为溶剂， 生成 N,N'-1,4-phenylenebis[4-(2,5-dihydro-3-methyl-2,5-dioxo-1H-pyrrol-1-yl)]benzamide
  参考文献：
  名称：

  The synthesis and characterisation of reactive poly(p-phenylene terephthalamide)s: A route towards compression stable aramid fibres

  摘要：

  Herein we report on the synthesis of reactive poly(p-phenylene terephthalamide) (PPTA) oligomers and the preparation and characterisation of aramid fibres thereof. Methacrylate and maleimide reactive end-groups were found to be sufficiently stable in H2SO4 at 85 degrees C and they were used to prepare reactive PPTA oligomers. Lyotropic spin-dopes could be prepared with up to 20 wt% of reactive oligomer (M-n = 3900 g mol(-1)) and this modification did not interfere with the fibre spinning process and had no effect on the fibre tensile properties. The as-spun fibres did indeed show a modest (+0.1 GPa) improvement in compression strength. A high temperature treatment at 380 degrees C resulted in fibres which all show a significant increase in compressive strength over their as-spun precursors, i.e. from 0.7 to 0.9 GPa. When fibres were treated at 430 degrees C the compression values of the oligomer-modified fibres dropped somewhat, whereas unmodified PPTA displayed a compressive strength of 1.1 GPa. Other favourable fibre properties such as modulus and tenacity were not compromised. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.polymer.2010.03.015

文献信息

• LIQUID CRYSTAL THERMOSET MONOMER OR OLIGOMER, THERMOSETTING LIQUID CRYSTAL POLYMER COMPOSITION COMPRISING THE SAME AND PRINTED CIRCUIT BOARD USING THE SAME
  申请人：Jung Myung Sup

  公开号：US20090224203A1

  公开（公告）日：2009-09-10

  A liquid crystal thermoset (LCT) monomer or oligomer having both ends capped with maleimide having at least one methyl group, represented by Formula 1: wherein R 1 and R 2 are each independently CH 3 or H, and at least one of R 1 and R 2 is a methyl group, and Ar 1 is a divalent organic group containing one or more structural units selected from the group consisting of ester, amide, ester amide, ester imide and ether imide units, and Ar 1 has a molecular weight not greater than 5,000.

  具有两端帽有马来酰亚胺的至少一个甲基基团的液晶热固性（LCT）单体或寡聚物，由式1表示： 其中R1和R2分别独立地为CH3或H，且R1和R2中至少有一个为甲基基团，Ar1为含有选择自酯、酰胺、酯酰胺、酯亚酰胺和醚亚酰胺单位的一种或多种结构单元的二价有机基团，Ar1的分子量不大于5000。
• US7655155B2
  申请人：——

  公开号：US7655155B2

  公开（公告）日：2010-02-02
• The synthesis and characterisation of reactive poly(p-phenylene terephthalamide)s: A route towards compression stable aramid fibres
  作者：Alwin Knijnenberg、Johan Bos、Theo J. Dingemans

  DOI：10.1016/j.polymer.2010.03.015

  日期：2010.4

  Herein we report on the synthesis of reactive poly(p-phenylene terephthalamide) (PPTA) oligomers and the preparation and characterisation of aramid fibres thereof. Methacrylate and maleimide reactive end-groups were found to be sufficiently stable in H2SO4 at 85 degrees C and they were used to prepare reactive PPTA oligomers. Lyotropic spin-dopes could be prepared with up to 20 wt% of reactive oligomer (M-n = 3900 g mol(-1)) and this modification did not interfere with the fibre spinning process and had no effect on the fibre tensile properties. The as-spun fibres did indeed show a modest (+0.1 GPa) improvement in compression strength. A high temperature treatment at 380 degrees C resulted in fibres which all show a significant increase in compressive strength over their as-spun precursors, i.e. from 0.7 to 0.9 GPa. When fibres were treated at 430 degrees C the compression values of the oligomer-modified fibres dropped somewhat, whereas unmodified PPTA displayed a compressive strength of 1.1 GPa. Other favourable fibre properties such as modulus and tenacity were not compromised. (C) 2010 Elsevier Ltd. All rights reserved.