2,4-tolylene diisocyanate | 88457-33-4

• 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: 2,4-tolylene diisocyanate
• 英文别名: 2-Isocyanato-4-(isocyanatomethyl)-1-methylbenzene
• CAS: 88457-33-4
• 化学式: C₁₀H₈N₂O₂
• 分子量: 188.186
• InChiKey: IHYDRUJXMGSQDX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  58.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2,4-tolylene diisocyanate 、 2-[4-[[4-bis(2,4,6-trimethylphenyl)boranylphenyl]diazenyl]-N-(2-hydroxyethyl)anilino]ethanol 生成
  参考文献：
  名称：

  Polyurethanes containing boron chromophores as sidechains for nonlinear optics

  摘要：

  An axo-dye containing dimesityl boron as the electron acceptor group is synthesized and incorporated as side chains in polyurethane matrices. These new polymers have been poled under an external electrical field by the corona technique. They exhibit high nonlinear response and a remarkable temporal stability. It appears that the poling time is a crucial parameter not only in terms of obtaining a good second harmonic response but also in the temporal stability. (C) 1997 Elsevier Science B.V.

  DOI：

  10.1016/s0009-2614(97)88019-0

文献信息

• Fluid, stable interpolymer/polyol compositions, process for the production thereof and processes for the production of elastomeric polyurethanes and polyurethane foams therefrom
  申请人：UNION CARBIDE CORPORATION

  公开号：EP0006605A1

  公开（公告）日：1980-01-09

  Fluid, stable polymer-polyols are provided which consist of an organic polyol medium and an interpolymer of a minor amount of polymerized ethylenically unsaturated dicarboxylic acid anhydride, such as maleic acid anhydride, and a major amount of at least one different polymerized ethylenically unsaturated monomer, the interpolymer being in the form of particles that are stably dispersed in the polyol. Polyurethane foams produced from these polymer/ polyols display improved load bearing and compression set when compared with polymer/polyols produced in a similar manner without the ethylenically unsaturated dicarboxylic acid anhydride: elastomers so produced have improved tensile modulus and tear properties.

  提供了流体稳定聚合物多元醇，它由有机多元醇介质和少量聚合乙烯基不饱和二羧酸酐（如马来酸酐）与大量至少一种不同的聚合乙烯基不饱和单体的互聚物组成，互聚物呈颗粒状稳定地分散在多元醇中。与不含乙烯基不饱和二羧酸酐的聚合物/多元醇相比，用这些聚合物/多元醇生产的聚氨酯泡沫塑料的承载能力和压缩永久变形都有所改善：用这种方法生产的弹性体具有更好的拉伸模量和撕裂性能。
• Curable molding composition and its use for producing thermoset fiber-reinforced molded articles
  申请人：UNION CARBIDE CORPORATION

  公开号：EP0052881A2

  公开（公告）日：1982-06-02

  Curable molding compositions comprising a mixture of: I. from about 25 to about 90 weight percent of a thermosetting resin containing: (a) from about 5 to about 95 weight percent of a polyester resin derived from the reaction of a poly(acrylate) and a vinyl monomer, said poly(acrylate) and vinyl monomer essentially free from functional groups reactive with the polyol of the polyisocyanate of (b); (b) from about 95 to about 5 weight percent of a polyurethane derived from the reaction of a saturated polyol and a polyisocyanate, said polyol and polyisocyanate free from unsaturated groups capable of copolymerizing with the poly(acrylate) or vinyl monomer of (a); and II. from about 75 to about 10 weight percent of one or more fibers with a melting point or a glass transition temperature above about 130°C; wherein (b) constitutes less than 40 weight percent of (I) and (II). These compositions are especially suited to produce thermoset fiber-reinforced molded articles by rapid injection molding techniques.

  可固化成型组合物，由以下物质的混合物组成 I. 约 25 至约 90 重量百分比的热固性树脂，其中含有 (a) 约 5%至约 95%的聚酯树脂，由聚丙烯酸酯和乙烯基单体反应生成，所述 聚丙烯酸酯和乙烯基单体基本上不含与(b)的多异氰酸酯的多元醇反应的官能团； (b) 约 95%至约 5%的由饱和多元醇和多异氰酸酯反应生成的聚氨酯，所述 多元醇和多异氰酸酯不含能与(a)的聚丙烯酸酯或乙烯基单体共聚的不饱和基 团；以及 II. 一种或多种熔点或玻璃化转变温度高于约 130°C 的纤维的重量百分比从约 75% 到约 10%；其中(b)占(I)和(II)的重量百分比小于 40%。这些组合物特别适用于通过快速注塑成型技术生产热固性纤维增强模塑制品。
• Process for the preparation of polyisocyanurate dispersions modified with halogenated alcohols and compositions prepared therefrom
  申请人：BASF WYANDOTTE CORPORATION

  公开号：EP0056582A1

  公开（公告）日：1982-07-28

  Polyisocyanurate polymers are prepared by polymerization of polyisocyanates in organic solvents employing trimerization catalysts. The polyisocyanates are reacted with halogenated alcohols subsequent to polymerization. These polymers may be dispersed in polyols for the preparation of cellular and non-cellular polyurethane products having improved flame retardant physical properties.

  多异氰酸酯聚合物是通过使用三聚催化剂在有机溶剂中聚合多异氰酸酯制备而成。聚合后，多异氰酸酯会与卤化醇发生反应。这些聚合物可分散在多元醇中，用于制备具有更佳阻燃物理特性的蜂窝状和非蜂窝状聚氨酯产品。
• Flexible polyurethane foams having junction modifying particulate additives
  申请人：JOUBERT & JOUBERT PROPRIETARY LIMITED

  公开号：EP0065872A1

  公开（公告）日：1982-12-01

  Conventional polyurethane foam products are modified by incorporating into the urethane reaction mixture a junction modifying particulate material that is selected with a critically controlled particle size relative to certain dimensional parameters of the foamed polymer matrix. This particulate material is selected with a particle size that results in location of the material in the foam cell wall junction regions rather than in the cell walls. The resulting products provided excellent physical properties (such as modulus of compression, tensile strength, elongation and tear resistance) at lower costs than normally encountered with similar unmodified foams. The preferred junction modifying particulate materials are organic polymeric materials such as ground rubber or plastics. As a result, the large particle size materials needed to achieve the junction modifying properties can be used without causing harmful abrasion or wear of processing equipment surfaces.

  传统的聚氨酯泡沫塑料产品是通过在聚氨酯反应混合物中加入结点改性微粒材料进行改性的，这种微粒材料的粒径相对于发泡聚合物基体的某些尺寸参数而言受到严格控制，这种微粒材料的粒径可使材料位于泡沫塑料细胞壁的结点区域而不是细胞壁中。 由此产生的产品具有优异的物理性能（如压缩模量、拉伸强度、伸长率和抗撕裂性能），而且成本低于通常使用的类似未改性泡沫塑料。 优选的结点改性微粒材料是有机聚合物材料，如磨碎的橡胶或塑料。 因此，可以使用实现结点改性性能所需的大粒径材料，而不会对加工设备表面造成有害的磨损。
• Process for the preparation of polyisocyanurate dispersions and compositions prepared therefrom
  申请人：BASF WYANDOTTE CORPORATION

  公开号：EP0056581A1

  公开（公告）日：1982-07-28

  Polyisocyanurate polymers are prepared by polymerization of polyisocyanates in organic solvents employing trimerization catalysts. The polyisocyanates are reacted with monofunctional active hydrogen compounds prior to polymerization or subsequent to the polymerization. These polymers may be dispersed in polyols for the preparation of cellular and non-cellular polyurethane products having improved physical properties.

  多异氰酸酯聚合物是通过多异氰酸酯在有机溶剂中利用三聚催化剂进行聚合反应制备的。聚合前或聚合后，多异氰酸酯会与单官能团活性氢化合物发生反应。这些聚合物可分散在多元醇中，用于制备具有更好物理性能的蜂窝状和非蜂窝状聚氨酯产品。