N-乙烯基-N-甲基-2-丙烯酰胺 | 44642-58-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 中文名称: N-乙烯基-N-甲基-2-丙烯酰胺
• 英文名称: N-ethenyl-N-methylprop-2-enamide
• CAS: 44642-58-2
• 化学式: C₆H₉NO
• 分子量: 111.14
• InChiKey: GSOZJNOMOUGFPA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  8
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  1

文献信息

• CONTACT LENS BASED BIOACTIVE AGENT DELIVERY SYSTEM
  申请人：Chauhan Anuj

  公开号：US20110217355A1

  公开（公告）日：2011-09-08

  A bioactive agent delivery system comprising an optically transparent contact lens having dispersed therein (1) an ophthalmically bioactive agent capable of diffusion through the contact lens and into the post-lens tear film when placed on the eye and (2) associated with the bioactive agent, an ophthalmically compatible polymeric surfactant in an amount sufficient to slow the rate of migration of the bioactive agent through the contact lens.

  一种生物活性物质传递系统，包括一个光学透明的隐形眼镜，其中分散着（1）一种眼科生物活性物质，能够通过隐形眼镜扩散到贴在眼睛上的后隐泪膜中，以及（2）与生物活性物质相关联的眼科兼容性聚合物表面活性剂，其数量足以减缓生物活性物质通过隐形眼镜的迁移速率。
• WATER-ABSORBENT RESIN, PROCESS FOR PRODUCTION THEREOF, AND WATER-ABSORBENT RESIN COMPOSITION
  申请人：NIPPON SHOKUBAI CO., LTD.

  公开号：EP0744435A1

  公开（公告）日：1996-11-27

  A water-absorbent resin is produced by dispersing a solid blowing agent having an average particle diameter within a range of from 1 µm to 100 µm in an aqueous monomer solution containing an unsaturated monomer and a cross-linking agent, and then polymerizing the unsaturated monomer. The water-absorbent resin has excellent water absorption characteristics, such as improved dispersion and absorption rate of aqueous fluid, enhanced water retention capacity and dry touch, lower water-soluble component content, and lower residual monomer content. When a water-absorbent resin composition using the water-absorbent resin is used for, for example, a sanitary material, it is possible to improve the absorption rate and water retention capacity, and prevent leakage of fluid from the sanitary material.

  将平均颗粒直径在 1 微米至 100 微米范围内的固体发泡剂分散在含有不饱和单体和交联剂的单体水溶液中，然后使不饱和单体聚合，可制成吸水性树脂。这种吸水性树脂具有优异的吸水特性，例如改善了对水性流体的分散性和吸收率，提高了保水能力和干触感，降低了水溶性成分含量，减少了残留单体含量。当使用该吸水性树脂的吸水性树脂组合物用于卫生材料等时，可以提高吸水率和保水能力，并防止液体从卫生材料中渗漏。
• METHOD OF MODIFYING HYDROPHILIC POLYMER AND PROCESS FOR PRODUCING HYDROPHILIC POLYMER RESIN
  申请人：NIPPON SHOKUBAI CO., LTD.

  公开号：EP0819721A1

  公开（公告）日：1998-01-21

  A hydrophilic polymer is denatured with a gaseous denaturant or a powdery denaturant substance made from a liquid denaturant substance. The liquid denaturant substance is made into powders by, for example, a method of mixing the liquid denaturant substance with a water-insoluble compound, a method of cooling the liquid denaturant substance to or below its melting point to turn the same into a solid state. Consequently, the hydrophilic polymer can be denatured uniformly. In case that the hydrophilic polymer is denatured with a gaseous denaturant, the hydrophilic polymer and denaturant react with each other efficiently in a safe manner regardless of the size or shape of the hydrophilic polymer. In case that the hydrophilic polymer is denatured with the powdery denaturant substance, not only the liquid denaturant substance which is substantially in the solid state can be mixed with the hydrophilic polymer, but also the denaturation timing can be readily controlled.

  亲水性聚合物用气态变性剂或液态变性剂制成的粉末状变性剂物质进行变性。将液态变性剂物质制成粉末的方法包括：将液态变性剂物质与水不溶性化合物混合；将液态变性剂物质冷却至熔点或熔点以下，使其变成固态。这样，亲水性聚合物就能均匀地变性。如果亲水性聚合物用气态变性剂变性，则无论亲水性聚合物的大小或形状如何，亲水性聚合物和变性剂都能以安全的方式有效地相互反应。如果用粉末状变性剂对亲水性聚合物进行变性，则不仅可以将基本呈固态的液态变性剂与亲水性聚合物混合，而且还可以很容易地控制变性时间。
• Water-absorbent resin, process for production thereof, and water-absorbent resin composition
  申请人：NIPPON SHOKUBAI CO., LTD.

  公开号：EP1364985A1

  公开（公告）日：2003-11-26

  A water-absorbent resin is produced by dispersing a solid blowing agent having an average particle diameter within a range of from 1 µm to 100 µm in an aqueous monomer solution containing an unsaturated monomer and a cross-linking agent, and then polymerizing the unsaturated monomer. The water-absorbent resin has excellent water absorption characteristics, such as improved dispersion and absorption rate of aqueous fluid, enhanced water retention capacity and dry touch, lower water-soluble component content, and lower residual monomer content. When a water-absorbent resin composition using the water-absorbent resin is used for, for example, a sanitary material, it is possible to improve the absorption rate and water retention capacity, and prevent leakage of fluid from the sanitary material.

  将平均颗粒直径在 1 微米至 100 微米范围内的固体发泡剂分散在含有不饱和单体和交联剂的单体水溶液中，然后使不饱和单体聚合，可制成吸水性树脂。这种吸水性树脂具有优异的吸水特性，例如改善了对水性流体的分散性和吸收率，提高了保水能力和干触感，降低了水溶性成分含量，减少了残留单体含量。当使用该吸水性树脂的吸水性树脂组合物用于卫生材料等时，可以提高吸水率和保水能力，并防止液体从卫生材料中渗漏。
• Hydrogel processing
  申请人：Johson & Johnson Vision Care Inc.

  公开号：EP1693688A1

  公开（公告）日：2006-08-23

  Disclosed are methods and apparatus for hydrating ophthalmic lenses and leaching excess materials from the ophthalmic lenses. The methods include the steps of exposing contact lenses with a hydration solution comprising about 30 to 70 percent isopropyl alcohol and water. In some embodiments, the hydration solution is maintained at an elevated temperature. Exposure to a first hydration solution causes the ophthalmic lenses to swell to a size larger than their functional size, and exposure to a second ophthalmic solution causes the lenses to shrink back to a functional size.

  所公开的是为眼科镜片补水并从眼科镜片中沥滤多余材料的方法和设备。这些方法包括以下步骤：将隐形眼镜与由约 30% 至 70% 的异丙醇和水组成的水合溶液接触。在某些实施例中，水合溶液保持在较高的温度下。接触第一种水合溶液会使隐形眼镜膨胀到大于其功能尺寸，接触第二种眼科溶液会使隐形眼镜收缩回功能尺寸。