4-vinylbenzyl methoxytetrakis(oxyethylene) ether | 59990-87-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4-vinylbenzyl methoxytetrakis(oxyethylene) ether
• 英文别名: 1-Ethenyl-4-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxymethyl]benzene
• CAS: 59990-87-3
• 化学式: C₁₈H₂₈O₅
• 分子量: 324.417
• InChiKey: GOMLMTOEAFEAEH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  23
• 可旋转键数：
  15
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  46.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  三甘醇单甲醚 在 sodium hydroxide 、 sodium 、 sodium hydride 作用下， 以 四氢呋喃 、 水 为溶剂， 生成 4-vinylbenzyl methoxytetrakis(oxyethylene) ether
  参考文献：
  名称：

  Synthesis of Thermosensitive Water-Soluble Polystyrenics with Pendant Methoxyoligo(ethylene glycol) Groups by Nitroxide-Mediated Radical Polymerization

  摘要：

  Nitroxide-mediated radical polymerizations of 4-vinylbenzyl methoxytris(oxyethylene) ether (TEGSt), 4-vinylbenzyl methoxytetrakis(oxyethylene) ether (TrEGSt), and 4-vinylbenzyl methoxypentakis(oxyethylene) ether (PEGSt) were carried out at 120 degrees C using 2,2,5-trimethyl-3-(1-phenylethoxy)-4-phenyl-3-azahexane as initiator. Kinetics study and gel permeation chromatography analysis showed that the polymerizations were living processes yielding polymers with controlled molecular weights and narrow molecular weight distributions. The polymers can be dissolved in water forming transparent solutions and undergo phase transitions when the temperature is above a critical point. The cloud points of the homopolymers of TEGSt, TrEGSt, and PEGSt were around 13, 39, and 55 degrees C, respectively, which were also supported by variable temperature H-1 NMR spectroscopy analysis. The high level of alkoxyamine chain end retention allowed the synthesis of diblock copolymers with low polydispersities (< 1.15). Cloud point measurements and H-1 NMR studies indicated that the diblock copolymers undergo phase transition in water at a temperature between the cloud points of the two corresponding homopolymers.

  DOI：

  10.1021/ma0514572

文献信息

• Temperature-induced phase-transitions of methoxyoligo(oxyethylene) styrene-based block copolymers in aqueous solution
  作者：Fengjun Hua、Weizhong Yuan、Phillip F. Britt、Jimmy W. Mays、Kunlun Hong

  DOI：10.1039/c3sm51208h

  日期：——

  lower critical solution temperature (LCST) in aqueous solution, and the LCST depends on the length of the PTrEGS block and the copolymer composition. Longer PTrEGS chains result in higher LCST values in aqueous solutions. The cloud points (Tcs) of PS-b-PTrEGS copolymers are lower than that of PTrEGS homopolymer as determined by UV-visible spectroscopy. Variable-temperature NMR spectra show that the intensity

  新型定义明确的二嵌段共聚物，基于 苯乙烯通过连续的原子转移自由基聚合制备甲氧基低聚（氧乙烯）侧基（4-CH 3 O（EO）4 ST，TrEGS）的取代基。聚苯乙烯（PS）合成为共聚物中的第一个嵌段，使用（1-溴乙基）苯作为发起者。接下来是由PTrEGS组成的第二个嵌段的生长。每种共聚物在水溶液中的临界溶液温度（LCST）较低，LCST取决于PTrEGS嵌段的长度和共聚物组成。较长的PTrEGS链会导致水溶液中的LCST值更高。PS- b的浊点（T c s）通过紫外可见光谱法测定，-PTrEGS共聚物低于PTrEGS均聚物。可变温度NMR光谱显示，在高于浊点的温度下，来自氧化乙烯基的质子信号的强度急剧降低，表明由于氢键变化而引起的相变。动态光散射（DLS）测量表明形成了胶束，其中PS骨架在25°C时充当核心。这些嵌段共聚物溶液中的每一种都从透明的蓝色溶液转变为高于一定浓度（≥10wt％）和温
• Polymer for use as protective layers and other components in electrochemical cells
  申请人：Sion Power Corporation

  公开号：US10020512B2

  公开（公告）日：2018-07-10

  Polymers for use as protective layers and other components in electrochemical cells are provided. In some embodiments, the electrochemical cell is a lithium-based electrochemical cell.

  本文提供了在电化学电池中用作保护层和其他元件的聚合物。在某些实施方案中，电化学电池是一种锂基电化学电池。
• POLYMER FOR USE AS PROTECTIVE LAYERS AND OTHER COMPONENTS IN ELECTROCHEMICAL CELLS
  申请人：BASF SE

  公开号：EP3084863B1

  公开（公告）日：2017-10-11
• [EN] POLYMER FOR USE AS PROTECTIVE LAYERS AND OTHER COMPONENTS IN ELECTROCHEMICAL CELLS<br/>[FR] POLYMÈRE DESTINÉ À ÊTRE UTILISÉ EN TANT QUE COUCHES DE PROTECTION ET D'AUTRES COMPOSANTS DANS DES CELLULES ÉLECTROCHIMIQUES
  申请人：BASF SE

  公开号：WO2015090607A1

  公开（公告）日：2015-06-25

  Polymers for use as protective layers and other components in electrochemical cells are provided. In some embodiments, the electrochemical cell is a lithium-based electrochemical cell.