5,7-十八烷二酸 | 136667-54-4

• 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: 5,7-十八烷二酸
• 中文别名: 5,7-辛基癸二烯酸
• 英文名称: 5,7-octadecadiynoic acid
• 英文别名: octadeca-5,7-diynoic acid
• CAS: 136667-54-4
• 化学式: C₁₈H₂₈O₂
• 分子量: 276.419
• InChiKey: VTTZLZZKHKSOGQ-UHFFFAOYSA-N

物化性质

• 熔点：
  57-59 °C
• 沸点：
  439.9±28.0 °C(Predicted)
• 密度：
  0.963±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.3
• 重原子数：
  20
• 可旋转键数：
  12
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.72
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

安全信息

• 海关编码：
  2916190090

反应信息

• 作为反应物：
  描述：

  5,7-十八烷二酸 、 乙二胺 在 N,N'-二环己基碳二亚胺 作用下， 以 氯仿 为溶剂， 反应 49.0h， 以54%的产率得到N,N'-ethylenebis(octadeca-5,7-diynamide)
  参考文献：
  名称：

  Tuning Down of Color Transition Temperature of Thermochromically Reversible Bisdiynamide Polydiacetylenes

  摘要：

  A series of bisdiynamide lipids containing various lengths of methylene spacer (m = 2, 3 and 4) between the diynes and the diamide headgroup and number of methylene units (n = 6 and 9) in their hydrophobic tails are synthesized. All six lipids synthesized can be dispersed in water and photopolymerized by UV irradiation to give the corresponding polydiacetylene (PDA) sols. The color transitions from blue to red during heating-cooling cycles of the PDA sols are photographically recorded and monitored by UV-vis absorption spectroscopy. The bisdiynamide PDAs exhibit excellent thermochromic reversibility and the color transition temperature can be tuned between ca. 25-55 degrees C by the variation of m and n values. Temperature indicators can be obtained by applying a screen printing ink formulated from the bisdiynamide monomer on plastic substrates followed by UV irradiation to generate desired patterns of thermochromically reversible PDAs.

  DOI：

  10.1021/ma101264k
• 作为产物：
  描述：

  1-碘癸烷 在 盐酸 、 重铬酸吡啶 、 正丁基锂 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 生成 5,7-十八烷二酸
  参考文献：
  名称：

  Synthesis of photopolymerizable long-chain conjugated diacetylenic acids and alcohols from butadiyne synthons

  摘要：

  DOI：

  10.1021/jo00025a045

文献信息

• 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。
• PROCESSLESS DIACETYLENIC SALT FILMS CAPABLE OF DEVELOPING A BLACK IMAGE
  申请人：ISP INVESTMENTS INC.

  公开号：EP0900409A1

  公开（公告）日：1999-03-10
• EP0900409A4
  申请人：——

  公开号：EP0900409A4

  公开（公告）日：2000-06-28