1,4-bis(pyridine-4-yloxy)butane | 215361-19-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1,4-bis(pyridine-4-yloxy)butane
• 英文别名: 4-(4-Pyridin-4-yloxybutoxy)pyridine；4-(4-pyridin-4-yloxybutoxy)pyridine
• CAS: 215361-19-6
• 化学式: C₁₄H₁₆N₂O₂
• 分子量: 244.293
• InChiKey: JKBWMDRJHSXQDB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  18
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  44.2
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  四氧化锇 、 2,3-二甲基-2-丁烯 、 1,4-bis(pyridine-4-yloxy)butane 以 甲苯 为溶剂， 生成
  参考文献：
  名称：

  Neutral Macrocyclic Boxes Spontaneously Assembled from Osmium Tetraoxide, Olefin, and Pyridyl Ligand

  摘要：

  DOI：

  10.1021/ja982476c
• 作为产物：
  描述：

  1,4-丁二醇 、 4-氯吡啶盐酸盐 在 sodium hydride 作用下， 以 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 49.0h， 以33%的产率得到1,4-bis(pyridine-4-yloxy)butane
  参考文献：
  名称：

  Hard Phase Crystallization Directs the Phase Segregation of Hydrogen-Bonded Supramolecular Polymers

  摘要：

  A growing body of work shows that the phase behavior of supramolecular polymers assembled from telechelic building blocks featuring binding motifs at the two termini is quite similar to that of conventional block copolymers. However, it remains unclear how crystallization of the phase formed by the binding motifs, which occurs in many supramolecular polymers, affects the phase morphology of such materials. Here we report a systematic investigation of a series of supramolecular polymers based on poly(ethylene-co-butylene) (PEB) telechelics and the complementary H-bonding pair isophthalic acid-pyridine (IPA-Py). These polymers were designed to feature two blocks that assemble into an amorphous low-glass-transition phase formed by the PEB segments and crystalline domains consisting of the binding motifs. The nature of the latter was systematically varied via the choice of the pyridine employed. The influence of the binding motif on the phase morphology and thereby properties of these supramolecular polymers was investigated by means of thermal analysis, polarized optical microscopy, (dynamic) mechanical analyses, small-angle X-ray scattering, and transmission electron microscopy. In the melted state, all materials assembled into hexagonal phases. However, when cooled below the crystallization temperature of the IPA-Py domains, three different scenarios were observed: breakout crystallization resulting in complex morphologies, retention of the melt morphology, and the formation of a lamellar phase.

  DOI：

  10.1021/acs.macromol.8b02502

文献信息

• Hard Phase Crystallization Directs the Phase Segregation of Hydrogen-Bonded Supramolecular Polymers
  作者：Anne-Cécile Ferahian、Sandor Balog、Emad Oveisi、Christoph Weder、Lucas Montero de Espinosa

  DOI：10.1021/acs.macromol.8b02502

  日期：2019.3.12

  A growing body of work shows that the phase behavior of supramolecular polymers assembled from telechelic building blocks featuring binding motifs at the two termini is quite similar to that of conventional block copolymers. However, it remains unclear how crystallization of the phase formed by the binding motifs, which occurs in many supramolecular polymers, affects the phase morphology of such materials. Here we report a systematic investigation of a series of supramolecular polymers based on poly(ethylene-co-butylene) (PEB) telechelics and the complementary H-bonding pair isophthalic acid-pyridine (IPA-Py). These polymers were designed to feature two blocks that assemble into an amorphous low-glass-transition phase formed by the PEB segments and crystalline domains consisting of the binding motifs. The nature of the latter was systematically varied via the choice of the pyridine employed. The influence of the binding motif on the phase morphology and thereby properties of these supramolecular polymers was investigated by means of thermal analysis, polarized optical microscopy, (dynamic) mechanical analyses, small-angle X-ray scattering, and transmission electron microscopy. In the melted state, all materials assembled into hexagonal phases. However, when cooled below the crystallization temperature of the IPA-Py domains, three different scenarios were observed: breakout crystallization resulting in complex morphologies, retention of the melt morphology, and the formation of a lamellar phase.
• Neutral Macrocyclic Boxes Spontaneously Assembled from Osmium Tetraoxide, Olefin, and Pyridyl Ligand
  作者：Kyu-Sung Jeong、Young Lag Cho、Jeong Uk Song、Hong-Young Chang、Moon-Gun Choi

  DOI：10.1021/ja982476c

  日期：1998.10.1