p-Dithiino(2.3-b)pyrazin-2.3-dicarbonitril | 50869-11-9

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 英文名称: p-Dithiino(2.3-b)pyrazin-2.3-dicarbonitril
• 英文别名: 1,4-Dithiino[2,3-b]pyrazine-2,3-dicarbonitrile；[1,4]dithiino[2,3-b]pyrazine-2,3-dicarbonitrile
• CAS: 50869-11-9
• 化学式: C₈H₂N₄S₂
• 分子量: 218.263
• InChiKey: FPOLEVHPVJCHTA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  14
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  124
• 氢给体数：
  0
• 氢受体数：
  6

文献信息

• Chain-stopped unsaturated polyester resin
  申请人：REICHHOLD CHEMICALS, INC.

  公开号：EP0475661A2

  公开（公告）日：1992-03-18

  A monofunctional alcohol or acid is used to chain stop a condensation reaction for preparing a low molecular weight unsaturated polyester resin. The monofunctional acid removes terminal hydroxy groups and replaces them with hydrocarbon groups. The monofunctional alcohol removes terminal carboxy groups and replaces them with hydrocarbon groups. The resulting polyester resins have improved hydrolytic stability. These chain stopped unsaturated polyester resins can be further modified with hydroxy acrylates, other hydroxy terminated polyesters, and diisocyanates to produce resins with excellent water resistance and physical properties for various applications, such as marble/onyx resins, sheet molding compounds, bulk molding compounds and resin transfer molding resins, gel coats, and bowling ball resins.

  在制备低分子量不饱和聚酯树脂时，使用单官能醇或单官能酸来阻止缩合反应。单官能度酸可去除末端羟基，代之以烃基。单官能醇可去除末端的羧基，代之以烃基。由此产生的聚酯树脂具有更好的水解稳定性。这些断链的不饱和聚酯树脂可进一步用羟基丙烯酸酯、其他羟基端聚酯和二异氰酸酯进行改性，生产出具有优异耐水性和物理性能的树脂，可用于各种用途，如大理石/缟玛瑙树脂、片状模塑化合物、散装模塑化合物和树脂传递模塑树脂、胶衣和保龄球树脂。
• US4168174A
  申请人：——

  公开号：US4168174A

  公开（公告）日：1979-09-18
• US5118783A
  申请人：——

  公开号：US5118783A

  公开（公告）日：1992-06-02