9-Vinylpurin | 56468-28-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 咪唑并嘧啶类
• 英文名称: 9-Vinylpurin
• 英文别名: 7-vinyl-7H-purine；7-Vinyl-7H-purine；7-ethenylpurine
• CAS: 56468-28-1
• 化学式: C₇H₆N₄
• 分子量: 146.151
• InChiKey: ATBHXPUGEDVGDM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  11
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  43.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  嘌呤 以25%的产率得到
  参考文献：
  名称：

  PITHA J., J. ORG. CHEM. , 1975, 40, NO 22, 3296-3298

  摘要：

  DOI：

文献信息

• Method of forming grafted copolymers
  申请人：Infineum International Limited

  公开号：EP1331243A2

  公开（公告）日：2003-07-30

  A process for preparing a grafted polymer in which a substrate polymer is graft reacted with a nitrogen-containing grafting monomer in the presence of a free radical initiator and an amide coupling inhibitor that reduces polymer crosslinking during the graft reaction.

  一种制备接枝聚合物的工艺，在该工艺中，基质聚合物与含氮接枝单体在自由基引发剂和酰胺偶联抑制剂的存在下进行接枝反应，酰胺偶联抑制剂可在接枝反应过程中减少聚合物的交联。
• Multiple-function dispersant graft polymer
  申请人：Goldblatt Irwin L.

  公开号：US10190070B2

  公开（公告）日：2019-01-29

  A grafted polymer, either polyolefin or polyester, containing monomers associated with sludge and varnish control as well as monomers associated with soot handling to provide a graft polymer exhibiting multiple performance attributes. Also described are methods for manufacturing these novel multiple-function graft polymers via solution and melt processes. Lubricating oil compositions containing these novel multiple-function polymers as an additive that display performance characteristics directed to good soot handling and sludge and varnish control as well as control of viscosity increase are described.

  一种接枝聚合物（聚烯烃或聚酯），含有与污泥和漆膜控制相关的单体以及与烟尘处理相关的单体，可提供具有多种性能属性的接枝聚合物。此外，还介绍了通过溶液和熔融工艺制造这些新型多功能接枝聚合物的方法。此外，还介绍了含有这些新型多功能聚合物作为添加剂的润滑油组合物，这些组合物具有良好的烟尘处理、油泥和漆膜控制以及粘度增加控制等性能特点。
• Polar grafted polyolefins, methods for their manufacture, and lubricating oil compositions containing them
  申请人：——

  公开号：US20020042349A1

  公开（公告）日：2002-04-11

  A grafted polyolefin containing one or more of N-vinylimidazole, 4-vinylpyridine, or other ethylenically-unsaturated nitrogen-containing or oxygen-containing graftable monomers grafted to a polyolefin copolymer is disclosed. The grafted polyolefin preferably has a weight average molecular weight of from about 20,000 to about 500,000, a polydispersity of less than about 10, and an ADT value of at least about 8. The grafted polyolefin can be defined as containing more than about 1.2% by weight of grafted monomer on a polyolefin, or as containing at least about 13 moles of graftable monomers per mole of polyolefin, or as having an asphaltene dispersancy test (ADT) value of at least about 8. Also described is a lubricating oil comprising a lubricant base oil and a grafted polyolefin as described above. Also described is a method of making a dispersant viscosity index improver. N-vinyl-imidazole or other ethylenically unsaturated nitrogen-containing and/or oxygen-containing graftable monomers and a graftable polyolefin are reacted with enough of an initiator to graft the monomer to the polyolefin. The initiator and/or graftable monomer is added to the other ingredients, maintained at the reaction temperature, over a period of time. The reaction temperature is maintained at a level high enough to give acceptable reaction times. The N-vinylimidazole and the initiator each can be added at a uniform, relatively slow rate during the reaction.

  本发明公开了一种接枝聚烯烃，它含有接枝到聚烯烃共聚物上的一种或多种 N-乙烯基咪唑、4-乙烯基吡啶或其他乙烯基不饱和含氮或含氧可接枝单体。接枝聚烯烃最好具有约 20,000 至约 500,000 的重量平均分子量、小于约 10 的多分散性和至少约 8 的 ADT 值。还描述了一种润滑油，包括润滑油基础油和上述接枝聚烯烃。还描述了一种制造分散剂粘度指数改进剂的方法。将 N-乙烯基咪唑或其他乙烯基不饱和含氮和/或含氧可接枝单体和可接枝聚烯烃与足够的引发剂反应，以将单体接枝到聚烯烃上。将引发剂和/或可接枝单体添加到其他成分中，并在反应温度下保持一段时间。反应温度要保持在足够高的水平，以提供可接受的反应时间。在反应过程中，N-乙烯基咪唑和引发剂可以以相对缓慢的速度均匀加入。
• Processes for preparing grafted copolymers
  申请人：Castrol Limited

  公开号：US20020183456A1

  公开（公告）日：2002-12-05

  Methods are disclosed for making graft copolymers. The methods comprise the steps of: (a) providing (i) an ethylene/propylene (EP) copolymer or other graftable polymer, (ii) an ethylenically unsaturated sulfur-, nitrogen- and/or oxygen-containing monomer, and (iii) an amount of an initiator sufficient to graft said monomer and EP copolymer or other graftable polymer, (b) introducing said EP copolymer or other graftable polymer into an extruder; (c) introducing said monomer into the extruder; (d) introducing said initiator into the extruder, wherein at least one of the above-identified reactants in (a) is introduced in the presence of a polar solvent; and (e) reacting said EP copolymer or other graftable polymer, monomer and initiator by operating said extruder, thereby forming the graft copolymer. This invention also relates to methods of making a dispersant viscosity index improver and methods for making a lubricating oil. This invention further relates to graft copolymer products made by the aforementioned methods.

  本发明公开了制造接枝共聚物的方法。这些方法包括以下步骤(a) 提供(i)乙烯/丙烯（EP）共聚物或其他可接枝聚合物，(ii)含硫、氮和/或氧的乙烯基不饱和单体，和(iii)一定量的引发剂，该引发剂足以使所述单体和乙烯/丙烯（EP）共聚物或其他可接枝聚合物接枝；(b)将所述乙烯/丙烯（EP）共聚物或其他可接枝聚合物引入挤出机；(c) 将所述单体引入挤出机； (d) 将所述引发剂引入挤出机，其中在极性溶剂存在下引入 (a) 中的至少一种上述反应物；以及 (e) 通过操作所述挤出机使所述 EP 共聚物或其他可接枝聚合物、单体和引发剂发生反应，从而形成接枝共聚物。本发明还涉及分散剂粘度指数改进剂的制造方法和润滑油的制造方法。本发明还涉及通过上述方法制成的接枝共聚物产品。
• Method for in-mold coating a polyolefin article
  申请人：——

  公开号：US20040071980A1

  公开（公告）日：2004-04-15

  The present invention is a process for producing an injection-molded thermoplastic work piece having a thermoset coating bonded thereto, comprising the steps of introducing into a closed mold a thermoplastic material, such as a polyolefin, heated to a temperature above its melting point and molding said material to form a work piece; followed by introducing a thermoset coating composition capable of generating free radicals into the closed mold to contact at least a portion of a surface of the work piece, the temperature of which is at or above the temperature at which free radicals contained in the coating composition are generated. The mold is then opened and the work piece is removed after the coating composition has at least partially cured. The present invention is also directed to a molded article made by the described process.

  本发明是一种生产具有热固性涂层的注塑热塑性工件的工艺，包括以下步骤：将热塑性材料（如聚烯烃）加热到高于其熔点的温度后引入封闭的模具中，并将所述材料成型以形成工件；然后将能够产生自由基的热固性涂层组合物引入封闭的模具中，使其与工件表面的至少一部分接触，其温度达到或超过涂层组合物中所含自由基的产生温度。然后打开模具，在涂层组合物至少部分固化后取出工件。本发明还涉及通过所述工艺制作的模制件。