4-[(thiobenzoyl)sulfanylmethyl]benzoic acid | 378792-48-4

• 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: 4-[(thiobenzoyl)sulfanylmethyl]benzoic acid
• 英文别名: 4-(Benzenecarbonothioylsulfanylmethyl)benzoic acid
• CAS: 378792-48-4
• 化学式: C₁₅H₁₂O₂S₂
• 分子量: 288.391
• InChiKey: ICBGZOTXMHOECE-UHFFFAOYSA-N

物化性质

• 沸点：
  477.4±55.0 °C(Predicted)
• 密度：
  1.334±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  19
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  94.7
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  二硫化碳 、 对溴甲基苯甲酸 、 phenylmagnesium bromide 以 乙醚 、 甲醇 为溶剂， 反应 30.0h， 生成 4-[(thiobenzoyl)sulfanylmethyl]benzoic acid
  参考文献：
  名称：

  Living-Free-Radical Emulsion Photopolymerization of Methyl Methacrylate by a Surface Active Iniferter (Suriniferter)

  摘要：

  A novel surface-active RAFT agent as a suriniferter, composed of the dithiobenzoyl main structure and a benzoic hydrophobic carboxylate hydrophilic moiety, was synthesized and applied to the living-radical emulsion polymerization of methyl methacrylate (MMA) initiated by UV irradiation in the absence of added surfactant and additional initiator at various temperatures. A stable spherical bead of PMMA was successfully obtained using the suriniferter, maintaining the living-radical polymerization characteristics. Monomer conversion, molecular weight evolution and distribution, and final particle sizes were characterized. The higher the iniferter concentration, the higher the conversion and the lower the molecular weight, final particle size, and molecular weight distribution (PDI) obtained. A linear increase in molecular weight with respect to conversion is observed, implying that this technique using the suriniferter follows living-radical polymerization. The PDI varies from 1.21 to 1.43, and the final particle sizes vary from 407 to 304 nm with an increase in the polymerization temperature from 60 to 80 degreesC. The ratios of the triad tacticity for syndiotactic, atactic, and isotactic configurations of the synthesized PMMA are 54.3, 38.6, and 7.1, respectively, and the glass-transition temperature (T-g) is 126.6 degreesC, which is much higher than that of commercial PMMA (T-g = 105 degreesC). Thus, it is believed that the suriniferter used in living-free-radical emulsion polymerization modifies the stereoregularity of the PMMA.

  DOI：

  10.1021/ma034331i

文献信息

• CARRIER COMPRISING NANODIAMOND
  申请人：Chao Jui-I

  公开号：US20110008447A1

  公开（公告）日：2011-01-13

  The present invention provides a carrier including a nanodiamond (ND) particle and a linker covalently bound to the ND particle, in which the linker is presented by the formula: —R 1 —O(R 2 ) m -Q-. In addition, the present invention further provides a carrier having an active unit covalently bound to the linker, in which the active unit is a drug, a vitamin or a biological molecule.
• REGULATION OF A CONTROLLED RADICAL POLYMERIZATION OF ACRYLATES BY LIGHT
  申请人：DOW GLOBAL TECHNOLOGIES LLC

  公开号：US20170029535A1

  公开（公告）日：2017-02-02

  Disclosed are methods for controlled radical polymerization of acrylic monomers using photoredox catalyst, where the polymerization is mediated, as well as regulated, by light.
• USING ORGANIC PHOTOREDOX CATALYSTS TO ACHIEVE METAL FREE PHOTOREGULATED CONTROLLED RADICAL POLYMERIZATION
  申请人：DOW GLOBAL TECHNOLOGIES LLC

  公开号：US20170240660A1

  公开（公告）日：2017-08-24

  Disclosed are methods for controlled radical polymerization of acrylic monomers using an organic photoredox catalyst, where the polymerization is mediated, as well as regulated, by light.
• [EN] FUNCTIONALIZED CELLULOSE NANOCRYSTALS, A METHOD FOR THE PREPARATION THEREOF AND USE OF FUNCTIONALIZED CELLULOSE NANOCRYSTALS IN COMPOSITES AND FOR GRAFTING<br/>[FR] NANOCRISTAUX DE CELLULOSE FONCTIONNALISÉS, LEUR PROCÉDÉ DE PRÉPARATION ET UTILISATION DE NANOCRISTAUX DE CELLULOSE FONCTIONNALISÉS DANS DES COMPOSITES ET POUR LE GREFFAGE
  申请人：SWETREE TECHNOLOGIES AB

  公开号：WO2014070092A1

  公开（公告）日：2014-05-08

  The present invention relates to a cellulose nanocrystal functionalized with a group R, a method for preparation of cellulose nanocrystals that are functionalized with one or more groups R and use of functionalized cellulose nanocrystals in composites and for grafting. The aim of the invention is to offer more rapid and simplified methods to generate functional CNC with high degree of reactive groups on the surface. Furthermore, there is a need for functional CNCs with groups on the surface that can be used in composite materials and where the reactive group can work as coupling agents, initiators for polymer grafting or as crosslinkers. This is achieved by a method for preparation of cellulose nanocrystals that are functionalized with one or more groups R, wherein the method comprises the steps of: a) providing cellulose; b) treating the cellulose with an acidic water solution; c) removing the acidic water solution; d) adding a solution comprising an organic acid; e) reacting the mixture obtained in step d).
• Living-Free-Radical Emulsion Photopolymerization of Methyl Methacrylate by a Surface Active Iniferter (Suriniferter)
  作者：Sang Eun Shim、Yoda Shin、Jong Won Jun、Kangseok Lee、Hyejun Jung、Soonja Choe

  DOI：10.1021/ma034331i

  日期：2003.10.1

  A novel surface-active RAFT agent as a suriniferter, composed of the dithiobenzoyl main structure and a benzoic hydrophobic carboxylate hydrophilic moiety, was synthesized and applied to the living-radical emulsion polymerization of methyl methacrylate (MMA) initiated by UV irradiation in the absence of added surfactant and additional initiator at various temperatures. A stable spherical bead of PMMA was successfully obtained using the suriniferter, maintaining the living-radical polymerization characteristics. Monomer conversion, molecular weight evolution and distribution, and final particle sizes were characterized. The higher the iniferter concentration, the higher the conversion and the lower the molecular weight, final particle size, and molecular weight distribution (PDI) obtained. A linear increase in molecular weight with respect to conversion is observed, implying that this technique using the suriniferter follows living-radical polymerization. The PDI varies from 1.21 to 1.43, and the final particle sizes vary from 407 to 304 nm with an increase in the polymerization temperature from 60 to 80 degreesC. The ratios of the triad tacticity for syndiotactic, atactic, and isotactic configurations of the synthesized PMMA are 54.3, 38.6, and 7.1, respectively, and the glass-transition temperature (T-g) is 126.6 degreesC, which is much higher than that of commercial PMMA (T-g = 105 degreesC). Thus, it is believed that the suriniferter used in living-free-radical emulsion polymerization modifies the stereoregularity of the PMMA.