pentafluorophenyl 4-(pyren-4-yl)butanoate | 1189164-57-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 芘
• 英文名称: pentafluorophenyl 4-(pyren-4-yl)butanoate
• CAS: 1189164-57-5
• 化学式: C₂₆H₁₅F₅O₂
• 分子量: 454.396
• InChiKey: NUUJGGDHFRSPOI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.21
• 重原子数：
  33.0
• 可旋转键数：
  5.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  26.3
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  1,6-己二胺 、 pentafluorophenyl 4-(pyren-4-yl)butanoate 在 三乙胺 作用下， 以 四氢呋喃 为溶剂， 以80%的产率得到N-(6-aminohexyl)-4-(pyren-4-yl)butanamide hydrochloride
  参考文献：
  名称：

  Temperature Controlled Dispersion of Carbon Nanotubes in Water with Pyrene-Functionalized Poly(N-cyclopropylacrylamide)

  摘要：

  Despite their immense potential, the ability to control the dispersion and microstructure of carbon nanotubes remains a hurdle for their widespread use. Poly(N-cyclopropylacrylamide), containing 5 mol% pyrene-bearing repeat units (p-PNCPA), is shown to vary the dispersion state of single-waited carbon nanotubes (SWNTs) in water. This is a thermo-responsive polymer whose conformation changes with temperature, which in turn leads to changes in the nanotube dispersion state. Cryo-TEM micrographs show that SWNTs stabilized using p-PNCPA transitions from a more exfoliated to a more bundled state as the aqueous suspension temperature is raised above the Lower critical solution temperature (LCST) of the polymer (similar to 30 degrees C). Viscosity measurements on SWNT/p-PNCPA aqueous suspensions show shear thinning and near Newtonian behavior at 10 and 50 degrees C, respectively. Drying of these suspensions produces composites whose microstructure and electrical conductivity vary with drying temperature. This behavior has significant implications for the processing of carbon nanotubes and tailoring of composite properties. Such stimuli-controlled dispersion of carbon nanotubes could have a variety of applications in nanoelectronics, sensing, and drug and gene delivery systems.

  DOI：

  10.1021/ja905803f
• 作为产物：
  描述：

  1-pyrenebutyric acid 、 三氟乙酸五氟苯酯 在 三乙胺 作用下， 以 四氢呋喃 为溶剂， 以71%的产率得到pentafluorophenyl 4-(pyren-4-yl)butanoate
  参考文献：
  名称：

  Temperature Controlled Dispersion of Carbon Nanotubes in Water with Pyrene-Functionalized Poly(N-cyclopropylacrylamide)

  摘要：

  Despite their immense potential, the ability to control the dispersion and microstructure of carbon nanotubes remains a hurdle for their widespread use. Poly(N-cyclopropylacrylamide), containing 5 mol% pyrene-bearing repeat units (p-PNCPA), is shown to vary the dispersion state of single-waited carbon nanotubes (SWNTs) in water. This is a thermo-responsive polymer whose conformation changes with temperature, which in turn leads to changes in the nanotube dispersion state. Cryo-TEM micrographs show that SWNTs stabilized using p-PNCPA transitions from a more exfoliated to a more bundled state as the aqueous suspension temperature is raised above the Lower critical solution temperature (LCST) of the polymer (similar to 30 degrees C). Viscosity measurements on SWNT/p-PNCPA aqueous suspensions show shear thinning and near Newtonian behavior at 10 and 50 degrees C, respectively. Drying of these suspensions produces composites whose microstructure and electrical conductivity vary with drying temperature. This behavior has significant implications for the processing of carbon nanotubes and tailoring of composite properties. Such stimuli-controlled dispersion of carbon nanotubes could have a variety of applications in nanoelectronics, sensing, and drug and gene delivery systems.

  DOI：

  10.1021/ja905803f