1-(4-乙烯基苯基)-2-苯基乙烷-1,2-二酮 | 133637-24-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 中文名称: 1-(4-乙烯基苯基)-2-苯基乙烷-1,2-二酮
• 英文名称: 1-phenyl-2-(4-vinylphenyl)-1,2-ethanedione
• 英文别名: 4-vinylbenzil；1-(4-Ethenylphenyl)-2-phenylethane-1,2-dione
• CAS: 133637-24-8
• 化学式: C₁₆H₁₂O₂
• 分子量: 236.27
• InChiKey: JYTQQPSLGWCRIX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  1-(4-乙基苯基)-2-苯基-1-乙酮 在 sodium hydroxide 、 N-溴代丁二酰亚胺(NBS) 、 selenium(IV) oxide 、 偶氮二异丁腈 、 potassium acetate 、 phosphorus pentoxide 、 对苯二酚 作用下， 以 甲醇 、 四氯化碳 、 水 、 溶剂黄146 、 苯 为溶剂， 反应 21.25h， 生成 1-(4-乙烯基苯基)-2-苯基乙烷-1,2-二酮
  参考文献：
  名称：

  4-乙烯基苯的制备及其均聚物和与苯乙烯的共聚物的光化学性质

  摘要：

  在空气中以> 400 nm的波长照射时，1-苯基-2-（4-乙烯基苯基）-1,2-乙二酮/苯乙烯（VBz / S）共聚物薄膜的侧苯基几乎被定量转化为过氧化苯甲酰（BP）基团。随后在91°C下加热，将过氧化苯甲酰侧基转化为酯和苯甲酸部分，并且交联比主链断裂明显多。VBz / S共聚物薄膜在366、313和254 nm处的辐照也会导致BP基团的形成，但是当基体吸收第二个光子时，它们会原位转化。BP形成和随后被第二个光子吸收后转化的相对速率常数的比率随辐射波长的减小而降低。辐照一层由不相容的聚（1-苯基-2-（4-乙烯基苯基）-1）紧密混合而成的薄膜，空气中大于400 nm的2-乙二酮）（PVBz）和聚苯乙烯（PS）也不会导致可辨别的BP浓度。而是，未反应的侧基苯甲醚基团充当光敏剂，几乎立即转化过氧部分。此外，我们证明了由254 nm辐射引起的VBz / S共聚物薄膜的交联可用于记录负像。

  DOI：

  10.1021/ma030213j

文献信息

• HEAT SHRINKABLE LAMINATED FILM, MOLDED ARTICLE USING SUCH FILM, AND HEAT SHRINKABLE LABEL AND CONTAINER
  申请人：MITSUBISHI PLASTICS, INC.

  公开号：EP1810822A1

  公开（公告）日：2007-07-25

  The present invention provides a heat-shrinkable laminated film, which exhibits excellent film rigidity, shrink finishing quality, transparency of the recycled film, and a small natural shrinkage, with suppressed film interlayer peeling and shrinking stress, and which is applicable to shrinkable packing, shrinkable bond-packing, shrinkable label and the like. The heat-shrinkable laminated film comprises: a surface layer (S layer) composed of a polyester series resin composition containing a polyvalent carboxylic acid residue and a polyvalent alcohol residue; a middle layer (M layer) composed of a styrene series resin composition; and an adhesive layer (AD layer) which contains a copolymer of styrene series hydrocarbon and a conjugated dienic hydrocarbon or hydrogenated derivatives thereof, and having a styrene series hydrocarbon content rate to the entire copolymer or hydrogenated derivatives is 5~40 mass % or less. An elongation modulus of the film in a direction perpendicular to a main shrinking direction of the film is 1200MPa or more, and a shrinking stress in the main shrinking direction of the film is 8MPa or less or a rupture elongation at 23°C is 40% or more.

  本发明提供了一种热收缩复合膜，它具有优异的薄膜刚性、收缩整理质量、回收薄膜的透明度和较小的自然收缩率，薄膜层间剥离和收缩应力受到抑制，适用于收缩包装、收缩粘合包装、收缩标签等。 该热收缩复合膜包括：由含有多价羧酸残基和多价醇残基的聚酯系列树脂组合物构成的表层（S 层）；由苯乙烯系列树脂组合物构成的中间层（M 层）；以及含有苯乙烯系列烃和共轭二元烃的共聚物或其氢化衍生物的粘合剂层（AD 层），其苯乙烯系列烃含量占整个共聚物或氢化衍生物的比例为 5~40 质量%或更少。薄膜在垂直于薄膜主收缩方向上的伸长模量为 1200MPa 或以上，薄膜主收缩方向上的收缩应力为 8MPa 或以下，或在 23°C 时的断裂伸长率为 40% 或以上。
• Heat-Shrinkable Laminated Film, Molded Product and Heat-Shrinkable Label Employing the Film, and Container
  申请人：Yamada Takeyoshi

  公开号：US20080057236A1

  公开（公告）日：2008-03-06

  The present invention provides a heat-shrinkable laminated film, which exhibits excellent film rigidity, shrink finishing quality, transparency of the recycled film, and a small natural shrinkage, with suppressed film interlayer peeling and shrinking stress, and which is applicable to shrinkable packing, shrinkable bond-packing, shrinkable label and the like. The heat-shrinkable laminated film comprises: a surface layer (S layer) composed of a polyester series resin composition containing a polyvalent carboxylic acid residue and a polyvalent alcohol residue; a middle layer (M layer) composed of a styrene series resin composition; and an adhesive layer (AD layer) which contains a copolymer of styrene series hydrocarbon and a conjugated dienic hydrocarbon or hydrogenated derivatives thereof, and having a styrene series hydrocarbon content rate to the entire copolymer or hydrogenated derivatives is 5˜40 mass % or less. An elongation modulus of the film in a direction perpendicular to a main shrinking direction of the film is 1200 MPa or more, and a shrinking stress in the main shrinking direction of the film is 8 MPa or less or a rupture elongation at 23° C. is 40% or more.
• Preparation of 4-Vinylbenzil and Photochemical Properties of Its Homopolymer and Copolymer with Styrene
  作者：Jaroslav Mosnáček、Richard G. Weiss、Ivan Lukáč

  DOI：10.1021/ma030213j

  日期：2004.2.1

  When irradiated at >400 nm in air, pendant benzil groups of 1-phenyl-2-(4-vinylphenyl)-1,2-ethanedione/styrene (VBz/S) copolymer films are transformed almost quantitatively into benzoyl peroxide (BP) groups. Subsequent heating at 91 °C converts the pendant benzoyl peroxide groups to esters and benzoic acid moieties, and there is significantly more cross-linking than main-chain cleavage. Irradiation

  在空气中以> 400 nm的波长照射时，1-苯基-2-（4-乙烯基苯基）-1,2-乙二酮/苯乙烯（VBz / S）共聚物薄膜的侧苯基几乎被定量转化为过氧化苯甲酰（BP）基团。随后在91°C下加热，将过氧化苯甲酰侧基转化为酯和苯甲酸部分，并且交联比主链断裂明显多。VBz / S共聚物薄膜在366、313和254 nm处的辐照也会导致BP基团的形成，但是当基体吸收第二个光子时，它们会原位转化。BP形成和随后被第二个光子吸收后转化的相对速率常数的比率随辐射波长的减小而降低。辐照一层由不相容的聚（1-苯基-2-（4-乙烯基苯基）-1）紧密混合而成的薄膜，空气中大于400 nm的2-乙二酮）（PVBz）和聚苯乙烯（PS）也不会导致可辨别的BP浓度。而是，未反应的侧基苯甲醚基团充当光敏剂，几乎立即转化过氧部分。此外，我们证明了由254 nm辐射引起的VBz / S共聚物薄膜的交联可用于记录负像。