Vinyl 3-(3.5-di-t-butyl-4-hydroxy-phenyl)-propionate | 38728-32-4

• 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: Vinyl 3-(3.5-di-t-butyl-4-hydroxy-phenyl)-propionate
• 英文别名: Ethenyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate
• CAS: 38728-32-4
• 化学式: C₁₉H₂₈O₃
• 分子量: 304.43
• InChiKey: RLOZJJVUGSNBNU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  22
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

文献信息

• Stabilization of polymers with styrenated-p-cresols
  申请人：Gelbin Michael E.

  公开号：US20080207804A1

  公开（公告）日：2008-08-28

  Disclosed herein is a process for the preparation of a mixture of styrenated p-cresol species that is liquid at room temperature and has a viscosity of less than 40,000 cps at 25° C., wherein said process affords 2,6-distyrenated p-cresol assaying at 70% minimum by GC area percent, comprising reacting styrene with p-cresol at a molar ratio of 1.85 to 2.1:1, respectively, in the presence of an acid catalyst at elevated temperature, wherein said mixture comprises monostyrenated-p-cresol, distyrenated-p-cresol, and tristyrenated-p-cresol and exhibits an acid number of less than 0.1 mg KOH/gram.

  本文公开了一种制备液态且在室温下粘度小于40,000 cps的苯乙烯化p-甲基苯酚混合物的方法，其中该方法以GC面积百分比为最小值，提供了至少70%的2,6-二苯乙烯化p-甲基苯酚，包括在酸催化剂存在下，在升高的温度下将苯乙烯与p-甲基苯酚按摩尔比1.85至2.1:1反应，其中该混合物包括单苯乙烯化-p-甲基苯酚，二苯乙烯化-p-甲基苯酚和三苯乙烯化-p-甲基苯酚，并且具有小于0.1 mg KOH/克的酸值。
• LIQUID STYRENATED PHENOLIC COMPOSITIONS AND PROCESSES FOR FORMING SAME
  申请人：Gelbin Michael E.

  公开号：US20090005478A1

  公开（公告）日：2009-01-01

  Disclosed herein are highly stable styrenated phenolic compositions that are liquids at room temperature, and polymer articles and lubricant compositions containing such styrenated phenolic compositions. Also disclosed are processes for forming such styrenated phenolic compositions, which processes afford distyrenated phenolics assaying at 70% minimum by total GC area, comprising reacting styrene with one or more phenolics, e.g., at least one of phenol, p-cresol and/or o-cresol, in the presence of an acid catalyst, preferably a sulfonic acid catalyst, at elevated temperature, wherein the resulting product mixture comprises one or more monostyrenated phenolics, one or more distyrenated phenolics, and one or more tristyrenated phenolics.

  本文披露了高度稳定的苯乙烯化酚类组合物，它们在室温下是液体，并且包含这种苯乙烯化酚类组合物的聚合物制品和润滑剂组合物。还披露了形成这种苯乙烯化酚类组合物的过程，该过程得到至少占总GC面积的70％的二苯乙烯化酚，包括在存在酸催化剂，优选为磺酸催化剂下，在升高的温度下，将苯乙烯与一个或多个酚反应，例如至少一个酚酚，对甲苯酚和/或邻甲酚，其中所得到的产物混合物包括一个或多个单苯乙烯化酚类，一个或多个二苯乙烯化酚类和一个或多个三苯乙烯化酚类。
• Heat transfer fluids and methods of use
  申请人：ExxonMobil Research and Engineering Company

  公开号：US10712105B1

  公开（公告）日：2020-07-14

  This disclosure relates to heat transfer fluids for use in heat transfer systems. The heat transfer fluids comprise at least one non-aqueous dielectric heat transfer fluid. The non-aqueous dielectric heat transfer fluid has density (ρ), specific heat (cp), and dynamic viscosity (μ) properties. The heat transfer fluids have a normalized effectiveness factor (NEFfluid) as determined by the following equation: N ⁢ E ⁢ F fluid = DEF fluid DEF reference ; wherein DEFfluid is a dimensional effectiveness factor for the heat transfer fluid that is determined based on an equation designated in Table 1 below for a selected pump and a selected heat transfer circuit dominant flow regime; wherein DEFreference is a dimensional effectiveness factor for a reference fluid that is determined using the same equation designated in Table 1 for DEFfluid above for the same selected pump and the same selected heat transfer circuit dominant flow regime; and TABLE 1 (Heat Transfer Fluid and Reference Fluid) Selected Heat Transfer Circuit Flow Regime Transition Selected Pump Laminar (Blasius) Positive Displacement Pump ρ1 cp1 μ−1 ρ0.25 cp1 μ−0.25 Centrifugal Pump ρ0.19 cp1 μ−0.19 ρ0.04 cp1 μ−0.04 wherein the heat transfer fluid has a NEFfluid value equal to or greater than 1.0. This disclosure also provides a method for improving performance of a heat transfer system, a method for improving performance of an apparatus, and a method for selecting a heat transfer fluid for use in a heat transfer system. The heat transfer fluids and methods of this disclosure are applicable in situations where the heat transfer system is dominated by heat conveyance.

  本公开涉及用于传热系统的导热液体。导热流体包括至少一种非水介质导热流体。非水介质导热流体具有密度 (ρ)、比热 (cp) 和动态粘度 (μ) 特性。导热流体的归一化效能因子（NEFfluid）由下式确定： N E F 流体 = DEF 流体 DEF 参考 ; 其中，DEFfluid 是导热流体的尺寸效率系数，该系数是根据下表 1 中指定的方程，针对选定的泵和选定的传热回路主导流态确定的；其中，DEFreference 是参考流体的尺寸效率系数，该系数是根据上述表 1 中为 DEFfluid 指定的相同方程，针对相同的选定泵和相同的选定传热回路主导流态确定的；以及 表 1 (传热流体和参考流体） 选定热量 传热回路 流量调节 过渡 选定泵 层流 （布拉修斯） 正排量泵 ρ1 cp1 μ-1 ρ0.25 cp1 μ-0.25 离心泵 ρ0.19 cp1 μ-0.19 ρ0.04 cp1 μ-0.04 其中导热流体的 NEFfluid 值等于或大于 1.0。本公开还提供了一种提高传热系统性能的方法、一种提高设备性能的方法以及一种选择用于传热系统的导热流体的方法。本公开的导热液体和方法适用于传热系统以热传导为主的情况。
• STABILIZATION OF POLYMERS WITH STYRENATED-P-CRESOLS
  申请人：CHEMTURA CORPORATION

  公开号：EP2150576A1

  公开（公告）日：2010-02-10
• Process for the preparation of phenolic carboxylic acid derivaties by enzymatic catalysis
  申请人：Ohrlein Reinhold

  公开号：US20060110807A1

  公开（公告）日：2006-05-25

  The present invention relates to an improved process for the preparation of phenolic carboxylic acid derivatives catalysed by biocatalytic esterification, transesterification or amidation of a corresponding lower alkyl ester. Biocatalysis is performed in the presence of suitable enzymes, e.g. hydrolases, especially esterases, amidases, lipases and proteases.