| 38011-25-5

• 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
• CAS: 38011-25-5
• 化学式: C6H12N2NaO4
• 分子量: 199.16
• InChiKey: DPFWIJOCRQUSDP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -2.05
• 重原子数：
  13
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  98.7
• 氢给体数：
  4
• 氢受体数：
  6

文献信息

• Modified ethylene-vinyl alcohol copolymer and method for the production thereof
  申请人：——

  公开号：US20040096683A1

  公开（公告）日：2004-05-20

  Provided is a modified ethylene-vinyl alcohol copolymer (C) having an ethylen content of 5 to 55 mol %, which contains a specific structural unit (I) in an amount of 0.3 to 40 mol % and may be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500. This can be produced by a method for producing the modified ethylene-vinyl alcohol copolymer (C) which comprises melting and kneading an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) in an extruder. The modified ethylene-vinyl alcohol copolymer (C) is superior to a unmodified ethylene-vinyl alcohol copolymer (A) in transparency, stretchability, flexibility and flexing resistance due to the specific structural unit (I) incorporated therein, and thus, can be used as a barrier material in various applications requiring the above performance capabilities.

  提供的是一种改性乙烯-醋酸乙烯共聚物(C)，其乙烯含量为5至55摩尔％，其中含有一种特定的结构单元(I)，其含量为0.3至40摩尔％，可通过将乙烯-醋酸乙烯共聚物(A)与分子量不超过500的单官能环氧化合物(B)反应而获得。该改性乙烯-醋酸乙烯共聚物(C)的制备方法包括在挤出机中熔融和揉捏乙烯-醋酸乙烯共聚物(A)与单官能环氧化合物(B)。由于其中包含了特定的结构单元(I)，改性乙烯-醋酸乙烯共聚物(C)在透明度、可伸展性、柔韧性和耐弯曲性方面优于未改性的乙烯-醋酸乙烯共聚物(A)，因此可以用作在需要上述性能能力的各种应用中的障壁材料。
• Resin composition and multi-layer structures
  申请人：Tai Shinji

  公开号：US20050147778A1

  公开（公告）日：2005-07-07

  Provided is a resin composition comprising 1-99% by weight of a modified ethylene-vinyl alcohol copolymer (C) having an ethylene content of 5-55 mol %, which contains a specific structural unit (I) in an amount of 0.3-40 mol % and can be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500, and 1-99% by weight of a thermoplastic resin (T 1 ) other than (C). Moreover, a multilayer structure in which the resin composition and a thermoplastic resin (T 2 ) are laminated is also provided. Thus, a resin composition superior in barrier properties, transparency, stretchability, flexibility, flexing resistance and interlayer adhesiveness and various kinds of molded articles made thereof are provided.

  本发明提供了一种树脂组合物，包括重量百分比为1-99%的改性乙烯-醇酸共聚物(C)，该共聚物的乙烯含量为5-55摩尔％，其中含有特定的结构单元(I)，其含量为0.3-40摩尔％，可以通过将乙烯-醇酸共聚物(A)与分子量不超过500的单官能环氧化合物(B)反应而获得，以及重量百分比为1-99%的热塑性树脂(T1)，该树脂组合物和热塑性树脂(T2)层压形成多层结构。因此，提供了一种优异的阻隔性、透明性、可拉伸性、柔韧性、耐弯曲性和层间粘附性的树脂组合物及其各种成型制品。
• MODIFIED ETHYLENE-VINYL ALCOHOL COPOLYMER AND METHOD FOR THE PRODUCTION THEREOF
  申请人：IKEDA Kaoru

  公开号：US20100280178A1

  公开（公告）日：2010-11-04

  Provided is a modified ethylene-vinyl alcohol copolymer (C) having an ethylen content of 5 to 55 mol %, which contains a specific structural unit (I) in an amount of 0.3 to 40 mol % and may be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500. This can be produced by a method for producing the modified ethylene-vinyl alcohol copolymer (C) which comprises melting and kneading an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) in an extruder. The modified ethylene-vinyl alcohol copolymer (C) is superior to a unmodified ethylene-vinyl alcohol copolymer (A) in transparency, stretchability, flexibility and flexing resistance due to the specific structural unit (I) incorporated therein, and thus, can be used as a barrier material in various applications requiring the above performance capabilities.

  提供的是一种改性乙烯-醇酸共聚物（C），其乙烯含量为5至55摩尔％，其中含有特定的结构单元（I），其量为0.3至40摩尔％，可以通过将乙烯-醇酸共聚物（A）与分子量不超过500的单官能环氧化合物（B）反应而获得。可以通过在挤出机中熔融和揉捏乙烯-醇酸共聚物（A）和单官能环氧化合物（B）来生产改性乙烯-醇酸共聚物（C）。由于其中包含了特定的结构单元（I），改性乙烯-醇酸共聚物（C）在透明度、可伸展性、柔韧性和弯曲抗力方面优于未改性的乙烯-醇酸共聚物（A），因此可以用作需要上述性能能力的各种应用中的障壁材料。
• A process for recovering peptides expressed as fusion proteins
  申请人：SANKYO COMPANY LIMITED

  公开号：EP0578472A2

  公开（公告）日：1994-01-12

  A process for recovering peptides which are expressed as fusion proteins comprises solubilising the fusion protein and subjecting it to proteolytic cleavage, the improvement comprising citraconylating free amino groups prior to solubilisation, thereby both to enhance solubility of the fusion protein in conditions conducive to proteolytic cleavage and to improve yield. It is also advantageous to sulphonate any disulphide bridges present in the fusion protein prior to cleavage.

  回收以融合蛋白形式表达的肽的工艺包括溶解融合蛋白并使其接受蛋白水解裂解，改进措施包括在溶解前对游离氨基进行柠檬酰化，从而提高融合蛋白在有利于蛋白水解裂解的条件下的溶解度并提高产量。在裂解前对融合蛋白中存在的任何二硫键进行磺化也是有利的。
• MODIFIED ETHYLENE−VINYL ALCOHOL COPOLYMER AND METHOD FOR THE PRODUCTION THEREOF
  申请人：Kuraray Co., Ltd.

  公开号：EP1403289A1

  公开（公告）日：2004-03-31

  Provided is a modified ethylene-vinyl alcohol copolymer (C) having an ethylen content of 5 to 55 mol%, which contains a specific structural unit (I) in an amount of 0.3 to 40 mol% and may be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500. This can be produced by a method for producing the modified ethylene-vinyl alcohol copolymer (C) which comprises melting and kneading an ethylene-vinyl alcohol copolymer (A) with amonofunctional epoxy compound (B) in an extruder. The modified ethylene-vinyl alcohol copolymer (C) is superior to a unmodified ethylene-vinyl alcohol copolymer (A) in transparency, stretchability, flexibility and flexing resistance due to the specific structural unit (I) incorporated therein, and thus, can be used as a barrier material in various applications requiring the above performance capabilities.

  本发明提供了一种改性乙烯-乙烯醇共聚物（C），其乙烯含量为 5 至 55 摩尔%，其中特定结构单元（I）的含量为 0.3 至 40 摩尔%，可通过乙烯-乙烯醇共聚物（A）与分子量不超过 500 的单官能环氧化合物（B）反应获得。这种改性乙烯-乙烯醇共聚物（C）的生产方法包括在挤压机中将乙烯-乙烯醇共聚物（A）与氨官能团环氧化合物（B）熔化和捏合。改性乙烯-乙烯醇共聚物（C）由于含有特定的结构单元（I），在透明度、拉伸性、柔韧性和抗弯曲性方面均优于未改性的乙烯-乙烯醇共聚物（A），因此可在要求上述性能的各种应用中用作阻隔材料。