5,7-二十烷二酸 | 69288-29-5

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 5,7-二十烷二酸
• 英文名称: 5,7-eicosadiynoic acid
• 英文别名: icosa-5,7-diynoic acid
• CAS: 69288-29-5
• 化学式: C₂₀H₃₂O₂
• 分子量: 304.473
• InChiKey: HFELYOMSJFEHGV-UHFFFAOYSA-N

物化性质

• 熔点：
  64 °C
• 沸点：
  464.8±28.0 °C(Predicted)
• 密度：
  0.951±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.4
• 重原子数：
  22
• 可旋转键数：
  14
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  5,7-二十烷二酸 在 草酰氯 、 N,N-二甲基甲酰胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 生成 6-(Icosa-5,7-diynoylamino)naphthalene-2-carboxylic acid
  参考文献：
  名称：

  比色可逆的聚二乙炔超分子的合理设计和原位FTIR分析

  摘要：

  衍生自多种功能化的二乙炔类脂质的聚二乙炔超分子的比色可逆性已经过详细研究。在早期的努力，其结果表明，聚二乙炔囊泡从PCDA-制备米BZA 1，轴承终端米-carboxyphenylamido基，显示在热刺激的完整可逆性J. PM。化学 Soc。2003，125，8976]。通过使用由PCDA- m BzA 1类似物制备的聚二乙炔超分子，在当前研究中已就这些系统中可逆热致变色的起源和性质进行了阐明。。已探究了与（1）内部酰胺基，（2）头基芳族相互作用，（3）疏水烷基链的长度和（4）末端羧基对聚二乙炔超分子的比色可逆性的影响有关的问题。结果表明，良好的氢键结合和头基之间的芳族相互作用对于热刺激后完全恢复共轭π电子链的长度至关重要。这项全面研究的结果首次使基于聚二乙炔超分子的可逆比色传感器的合理设计成为可能。

  DOI：

  10.1021/ma051551i

文献信息

• WATER-SOLUBLE DIACETYLENE, PHOTOLITHOGRAPHY COMPOSITION COMPRISING WATER-SOLUBLE DIACETYLENE MONOMER AND CONDUCTIVE POLYMER, AND FINE PATTERN PREPARATION METHOD USING SAME
  申请人：Industry-University Cooperation Foundation Hanyang University

  公开号：US20190144379A1

  公开（公告）日：2019-05-16

  Provided are a novel water-soluble diacetylene monomer, a composition for photolithography including the novel water-soluble diacetylene monomer and a conductive polymer, and a method of forming micropatterns using the composition. The water-soluble diacetylene monomer may not aggregate even when mixed with a water-soluble conductive polymer. Accordingly, a uniform composition for photolithography can be prepared by mixing a water-soluble conductive polymer with the diacetylene monomer, and micropatterns can be formed using the composition. More particularly, when the composition is formed into a thin film and then is irradiated with light, only light-irradiated portions of the diacetylene monomer are selectively crosslinked due to photopolymerization, thereby resulting in insoluble negative-type micropatterns.

  提供了一种新型水溶性二炔基单体，包括该新型水溶性二炔基单体和导电聚合物的光刻组合物，以及使用该组合物形成微图案的方法。即使与水溶性导电聚合物混合，水溶性二炔基单体也不会聚集。因此，通过将水溶性导电聚合物与二炔基单体混合，可以制备用于光刻的均匀组合物，并且可以使用该组合物形成微图案。更具体地说，当将组合物形成薄膜后，然后用光照射时，只有二炔基单体的经光辐射部分由于光聚合而选择性交联，从而形成不溶性负型微图案。
• COLOR CHANGING INK JET INK WITH TUNABLE TRANSITION STIMULI
  申请人：Xerox Corporation

  公开号：EP3670616A1

  公开（公告）日：2020-06-24

  A composition including a molecule comprising (1) a diacetylene moiety or diacetylene precursor; and (2) an alkyl additive; water; an optional co-solvent; an optional surfactant; an optional stabilizer; wherein the composition has the characteristic of color change after application of a stimulus. A process for preparing the composition. A process for preparing a product by printing the composition.

  一种组合物，包括由以下成分组成的分子：(1) 二乙炔分子或二乙炔前体；(2) 烷基添加剂；水；任选助溶剂；任选表面活性剂；任选稳定剂；其中该组合物在施加刺激后具有颜色变化的特性。一种制备该组合物的工艺。一种通过印刷该组合物制备产品的工艺。
• COLOR-CHANGING PARTICULATE COMPOSITIONS FOR ADDITIVE MANUFACTURING AND METHODS ASSOCIATED THEREWITH
  申请人：Xerox Corporation

  公开号：EP3992234A1

  公开（公告）日：2022-05-04

  Additive manufacturing processes, such as powder bed fusion of thermoplastic particulates, may be employed to form printed objects in a range of shapes. Formation of printed objects having various colors may sometimes be desirable. Thermoplastic particulates incorporating a color-changing material capable of forming different colors under specified activation conditions may impart different colors to a printed object. Such particulate compositions may comprise a plurality of thermoplastic particulates comprising a thermoplastic polymer and a color-changing material associated with the thermoplastic particulates, wherein the color-changing material is photochromic and thermochromic. Conjugated diynes, such as 10,12-pentacosadiynoic acid or a derivative thereof, may be particularly suitable color-changing materials having photochromic and thermochromic properties for forming a range of colors upon a printed object. Nanoparticles, particularly silica nanoparticles, associated with an outer surface of the thermoplastic particulates may enhance the brightness of the color obtained under various activation conditions and afford coloration permanence.

  快速成型制造工艺，如热塑性颗粒的粉末床熔融，可用于形成各种形状的印刷物体。有时可能需要形成具有各种颜色的印刷物体。含有变色材料的热塑性微粒能够在特定的活化条件下形成不同的颜色，从而为印刷物体赋予不同的颜色。这种微粒组合物可以由多个热塑性微粒组成，热塑性微粒包括热塑性聚合物和与热塑性微粒相关的变色材料，其中变色材料具有光致变色和热致变色功能。共轭二炔，如 10,12-五聚二炔酸或其衍生物，可能是特别合适的变色材料，具有光致变色和热致变色特性，可在印刷物体上形成一系列颜色。与热塑性微粒外表面相关联的纳米颗粒，特别是二氧化硅纳米颗粒，可以提高在各种活化条件下获得的颜色的亮度，并提供着色持久性。
• Plastics colouration
  申请人：Jarvis Anthony

  公开号：US10246562B2

  公开（公告）日：2019-04-02

  A method of imparting color to a plastic substrate comprising applying to the substrate, or incorporating within the substrate, a diacetylene compound of general formula (I) wherein n=1 to 20; R1=an optionally substituted C1-20 alkyl group which may contain heteroatoms; T=H, an optionally substituted C1-20 alkyl group which may contain heteroatoms or —(CH2)m—C(═O)-Q2R2; Q1=NH, CO, NHCONH, OCONH, COS, NHCSNH or NR3, wherein m, Q2 and R2 are independently selected from the same groups as n, Q1 and R1 respectively; R3 is an optionally substituted C1-20 alkyl group which may contain heteroatoms; and irradiating the substrate to impart color to the substrate is described.

  一种使塑料基材着色的方法，包括将通式(I)的二乙炔化合物涂敷于基材上或掺入基材中，其中n=1至20；R1=可含有杂原子的任选取代的C1-20烷基；T=H、可含有杂原子的任选取代的C1-20烷基或-(CH2)m-C(═O)-Q2R2；Q1=NH、CO、NHCONH、OCONH、COS、NHCSNH 或 NR3，其中 m、Q2 和 R2 分别独立地选自与 n、Q1 和 R1 相同的基团；R3 是可含有杂原子的任选取代的 C1-20 烷基；以及辐照底物以赋予底物颜色的描述。
• Diacetylene film sensitized with photoinitiator and applications of the film
  申请人：ISP INVESTMENTS LLC

  公开号：US10365154B2

  公开（公告）日：2019-07-30

  A process for improving sensitivity of a film base, coated with a dispersion of a normally crystalline polyacetylenic compound in a non-solvating liquid which is dried on the film surface, to particular photon energy band, specifically, long wavelength UV; the polyacetylenic compound preferably having at least two conjugated acetylenic linkages and containing from 12 to 60 carbon atoms. The sensitization of the film to long wavelength UV is achieved via the addition of photoinitiator(s) capable of absorbing UV energy and converting it to free radicals. The process comprises dispersing the normally crystalline polyacetylenic compound in the non-solvating liquid to a concentration of from about 2 to about 50% polyacetylene crystalline solids and a photoinitiator or combination of photoinitiators to a concentration of from 0.01 to 10%. The resultant dispersion is then coated and dried on a substrate. Additionally, applications using this film as a UVA illumination indicator and dosimeter are disclosed as well.

  一种用于提高薄膜基材对特定光子能带（特别是长波紫外线）的敏感性的工艺，薄膜基材上涂覆有正常结晶的聚乙炔化合物在非溶解液体中的分散液，该液体在薄膜表面干燥；聚乙炔化合物最好至少有两个共轭乙炔链节，并含有 12 至 60 个碳原子。薄膜对长波紫外线的敏化是通过添加能吸收紫外线能量并将其转化为自由基的光引发剂来实现的。该工艺包括将正常结晶的聚乙炔化合物分散在非溶解液中，使其浓度达到约 2%至约 50%的聚乙炔结晶固体和 0.01%至 10%的光引发剂或光引发剂组合。然后在基底上涂布并干燥所得到的分散体。此外，还公开了将这种薄膜用作 UVA 照明指示器和剂量计的应用。