4-butyl-4'-methoxyazobenzene | 77643-98-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 偶氮苯
• 英文名称: 4-butyl-4'-methoxyazobenzene
• 英文别名: trans-4-butyl-4'-methoxyazobenzene
• CAS: 77643-98-2
• 化学式: C₁₇H₂₀N₂O
• 分子量: 268.359
• InChiKey: QLNKXPFUPQGUDA-VHEBQXMUSA-N

物化性质

• 熔点：
  32 °C
• 沸点：
  403.8±28.0 °C(Predicted)
• 密度：
  1.01±0.1 g/cm3(Predicted)

反应信息

• 作为反应物：
  描述：

  4-butyl-4'-methoxyazobenzene 以 四氢呋喃 为溶剂， 反应 0.5h， 生成 cis-4-butyl-4'-methoxyazobenzene
  参考文献：
  名称：

  Photoswitchable fluorescence on/off behavior between cis- and trans-rich azobenzenes

  摘要：

  我们报告了顺式和反式富含 4-丁基-4′-甲氧基偶氮苯及其类似物 4-丁基-2,6-二甲基-4′-甲氧基偶氮苯之间的快速光开关荧光行为。

  DOI：

  10.1039/c2jm34776h
• 作为产物：
  描述：

  cis-4-butyl-4'-methoxyazobenzene 以 四氢呋喃 为溶剂， 生成 4-butyl-4'-methoxyazobenzene
  参考文献：
  名称：

  Photoswitchable fluorescence on/off behavior between cis- and trans-rich azobenzenes

  摘要：

  我们报告了顺式和反式富含 4-丁基-4′-甲氧基偶氮苯及其类似物 4-丁基-2,6-二甲基-4′-甲氧基偶氮苯之间的快速光开关荧光行为。

  DOI：

  10.1039/c2jm34776h

文献信息

• PATTERN FORMING METHOD, UNDER COATING AGENT, AND LAMINATE
  申请人：Oji Holdings Corporation

  公开号：US20200048491A1

  公开（公告）日：2020-02-13

  It is an object of the present invention to provide a pattern forming method capable of easily forming a phase-separated structure with high accuracy, even in the case of widening the applicable range of a pattern size. The present invention relates to a pattern forming method comprising: applying an under coating agent onto a substrate, and applying a self-assembly composition for pattern formation to the surface of the substrate, onto which the under coating agent has been applied, and then forming a self-assembly film according to self-assembly phase separation, wherein the self-assembly composition for pattern formation comprises a block copolymer comprising a polymerization unit (a) having at least one selected from a structure represented by a formula ( 103 ) and a structure represented by a formula ( 104 ), and a polymerization unit (b) having a structure represented by a formula ( 105 ).

  本发明的目的是提供一种能够在扩大图案尺寸适用范围的情况下，轻松形成具有高精度的相分离结构的图案形成方法。本发明涉及一种图案形成方法，包括：在基板上涂覆底涂剂，并将用于图案形成的自组装组合物应用到已涂覆底涂剂的基板表面上，然后根据自组装相分离形成自组装膜，其中用于图案形成的自组装组合物包括一种嵌段共聚物，该嵌段共聚物包括至少具有下列结构之一的聚合单元（a）和具有下列结构的聚合单元（b）。
• PHOTO-SWITCHABLE MEMBRANE AND METHOD
  申请人：Marshall Kenneth L.

  公开号：US20120025136A1

  公开（公告）日：2012-02-02

  Switchable gas permeation membranes in which a photo-switchable low-molecular-weight liquid crystalline (LC) material acts as the active element, and a method of making such membranes. Different LC eutectic mixtures were doped with mesogenic azo dyes and infused into track-etched porous membranes with regular cylindrical pores. Photo-induced isothermal phase changes in the imbibed mesogenic material afforded large, reversible changes in the permeability of the photo-switchable membrane to nitrogen. For example, membranes imbibed with a photo-switchable cyanobiphenyl LC material demonstrated low permeability in the nematic state, while the photo-generated isotropic state demonstrated a 16×-greater sorption coefficient. Both states obey a high linear sorption behavior in accordance with Henry's Law. In contrast, membranes imbibed with a photo-switchable phenyl benzoate LC material showed the opposite permeability behavior to the biphenyl-imbibed membrane, along with nonlinear sorption behavior.

  可切换气体渗透膜，其中光开关低分子液晶（LC）材料作为活性元素，并制造这种膜的方法。不同的LC共晶混合物掺杂有介向偶氮染料，并注入具有规则圆柱形孔的轨迹刻蚀多孔膜中。吸入的介向材料中的光诱导等温相变导致光开关膜对氮的渗透性发生大的、可逆的变化。例如，注入光开关氰基联苯LC材料的膜在向列相状态下表现出低的渗透性，而光产生的等向相状态表现出16倍更大的吸附系数。两种状态都遵循亨利定律的高线性吸附行为。相比之下，注入光开关苯基苯甲酸酯LC材料的膜表现出与联苯注入膜相反的渗透性行为，以及非线性吸附行为。
• Photochemical Image Storage in Polymer Liquid Crystals
  作者：Tomiki Ikeda、Shin Horiuchi、Durga B. Karanjit、Seiji Kurihara、Shigeo Tazuke

  DOI：10.1246/cl.1988.1679

  日期：1988.10.5

  light caused trans→cis isomerization of BMAB, which induced simultaneously the nematic (N)→isotropic phase transition of the PLC films. This photochemically induced phase transition was reversible and photoirradiation with a 525 nm light which induced cis→trans isomerization restored the system to the initial phase (N). The photo-induced phase transition was found to be strongly dependent on molecular

  已在聚合物液晶 (PLC) 中证明了放大光学图像存储。将少量 (< 5 mol%) 具有光响应性部分的低分子量介晶 4-丁基-4'-甲氧基偶氮苯 (BMAB) 掺杂到具有介晶侧链聚 (4'-甲氧基苯基) 的聚丙烯酸酯薄膜中-4-丙烯酰氧基烷氧基苯甲酸酯)(PAn)，其中烷基间隔长度 (CH2)n 随 n = 2、3、5 和 6 变化。用 366 nm 光照射 PA3/BMAB 膜导致反式→顺式异构化BMAB，它同时诱导了 PLC 薄膜的向列 (N)→各向同性相变。这种光化学诱导的相变是可逆的，用 525 nm 光进行光照射会诱导顺式→反式异构化，使系统恢复到初始相 (N)。
• Femtosecond dynamics and stimulated emission from the S2 state of a liquid crystalline trans-azobenzene
  作者：Jun Azuma、Naoto Tamai、Atushi Shishido、Tomiki Ikeda

  DOI：10.1016/s0009-2614(98)00251-6

  日期：1998.5

  solution by femtosecond transient absorption and picosecond single-photon timing fluorescence spectroscopies. The fluorescence was observed at 400 nm with a lifetime ∼250 fs. The S1 state with an absorption maximum at 410–415 nm was formed with a time constant of ∼250 fs from the S2 state followed by relaxation with a lifetime of ∼2.3 ps in n-hexane. The stimulated emission from the S2 state overlapped

  通过飞秒瞬态吸收和皮秒单光子定时荧光光谱研究了溶液中偶氮苯衍生物反式BMAB的激发态S 2动力学。在400 nm处观察到荧光，寿命约为250 fs。在S 1状态与吸收最大值在410-415 nm处与来自S的〜250个fs的时间常数形成2状态，随后松弛与~2.3 PS的一生Ñ正己烷。S 2态的受激发射在激发后立即与飞秒瞬态吸收光谱重叠，这通过偏振吸收光谱法得以证实。
• Amplified Image Recording in Liquid Crystal Media by Means of Photochemically Triggered Phase Transition
  作者：Shigeo Tazuke、Seiji Kurihara、Tomiki Ikeda

  DOI：10.1246/cl.1987.911

  日期：1987.5.5

  Over 100 times amplified image recording was achieved by means of reading out nematic isotropic phase transition of liquid crystal induced by partial trans→cis photoisomerization of a small amount(up to 5 mol%) of 4-butyl-4′-methoxyazobenzene mixed with 4-cyano-4′-n-pentylbiphenyl.

  通过读取少量（高达5 mol%）4-丁基-4'-甲氧基偶氮苯与4-甲基偶氮苯的部分反式→顺式光异构化诱导液晶的向列各向同性相变，实现了100倍以上的放大图像记录。 -氰基-4'-正戊基联苯。