2,3-Dimethyl-naphthalene-1,4-dicarboxylic acid | 344348-30-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 2,3-Dimethyl-naphthalene-1,4-dicarboxylic acid
• 英文别名: 1,4-Naphthalenedicarboxylic acid, 2,3-dimethyl-；2,3-dimethylnaphthalene-1,4-dicarboxylic acid
• CAS: 344348-30-7
• 化学式: C₁₄H₁₂O₄
• 分子量: 244.247
• InChiKey: HZKIYNNRXPJTLW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2,3-Dimethyl-naphthalene-1,4-dicarboxylic acid 在 氯化亚砜 、 对甲苯磺酸 、 2,3-二甲基苯胺 作用下， 以 various solvent(s) 为溶剂， 反应 7.0h， 生成 2,2'-(2,3-Dimethyl-1,4-naphthylen)dibenzoxazol
  参考文献：
  名称：

  Frischkorn, Hans; Pintschovius, Ulrich; Schinzel, Erich, Liebigs Annalen der Chemie, 1982, # 8, p. 1423 - 1433

  摘要：

  DOI：

文献信息

• Modified polyethylene naphthalate
  申请人：SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

  公开号：EP0335818A2

  公开（公告）日：1989-10-04

  Polyethylene naphthalate is a polyester resin that is highly useful in numerous applications. For instance, polyethylene naphthalate can be molded into a wide variety of products which have outstanding properties. However, polyethylene naphthalate does not crystallize rapidly at temperatures which are normally used in molding operations. This invention discloses a modified polyethylene naphthalate which crystallizes rapidly at much lower temperatures than does polyethylene naphthalate homopolymer. The modified polyethylene naphthalates of this invention contain a small amount of polyether glycol. This invention more specifically relates to a polyester comprised of repeat units which are derived from (a) a naphthalate dicarboxylic acid and (b) a diol component which is comprised of (1) at least one glycol containing from 2 to 12 carbon atoms and (2) from about 1 to about 12 weight percent of at least one polyether glycol based upon the total weight of the polymer.

  聚萘二甲酸乙二醇酯是一种聚酯树脂，在许多应用中都非常有用。例如，聚萘二甲酸乙二醇酯可以模塑成各种具有出色性能的产品。然而，聚萘二甲酸乙二醇酯在模塑操作通常使用的温度下不会迅速结晶。本发明公开了一种改性聚萘二甲酸乙二醇酯，它能在比聚萘二甲酸乙二醇酯均聚物低得多的温度下迅速结晶。本发明的改性聚萘二甲酸乙二醇酯含有少量聚醚二醇。本发明更具体地涉及一种由重复单元组成的聚酯，重复单元来源于(a)萘二甲酸和(b)二元醇组分，二元醇组分包括(1)至少一种含有 2 至 12 个碳原子的乙二醇和(2)至少一种聚醚乙二醇（以聚合物总重量为基准），其重量百分比约为 1 至 12。
• Aliphatic-aromatic polyesters, and articles made therefrom
  申请人：E. I. du Pont de Nemours and Company

  公开号：EP2184308A2

  公开（公告）日：2010-05-12

  Sulfonated aliphatic-aromatic polyester compositions having improved thermal properties and biodegradability, and articles such as films, coatings and laminates, produced from the sulfonated aliphatic-aromatic polyester compositions, are provided.

  提供了热性能和生物降解性均有所改善的磺化脂肪族-芳香族聚酯组合物，以及用磺化脂肪族-芳香族聚酯组合物生产的薄膜、涂层和层压板等物品。
• Poly(trimethylene terephthalate) composition and shaped articles prepared therefrom
  申请人：E. I. du Pont de Nemours and Company

  公开号：EP2270065A2

  公开（公告）日：2011-01-05

  A poly(trimethylene dicarboxylate) prepared by polycondensation of: (a) a glycol component comprising 1,3-propanediol; (b) aliphatic or aromatic diacid or diester; and (c) from 0.01 to 0.2 mole %, based on the total number of moles of said glycol component and diacid or ester, of polyfunctional reactant containing three or more carboxylic acid type groups or; wherein comonomers in the glycol component other than 1,3-propanediol are not more than 10% by weight of said glycol component. A process of making a shaped article comprising a) making a parison comprising such poly(trimethylene dicarboxylate) and b) blowing the parison into the shaped article.

  一种聚(三亚甲基二甲酸酯)，由以下物质缩聚而成 (a) 包含 1,3-丙二醇的乙二醇组分； (b) 脂肪族或芳香族二元酸或二元酯；以及 (c) 以所述乙二醇组分和二元酸或酯的总摩尔数为基准，0.01 至 0.2 摩尔%的含三个或三个以上羧酸类基团或羧酸类基团的多功能反应物； 其中乙二醇组分中除 1,3-丙二醇以外的共聚单体不超过所述乙二醇组分重量的 10%。 一种异型制品的制造工艺，包括 a) 制备包含此类聚三亚甲基二甲酸酯的型坯，以及 b) 将型坯吹制成定型制品。
• Biodegradable water-sensitive films
  申请人：Kimberly-Clark Worldwide, Inc.

  公开号：EP2363432A1

  公开（公告）日：2011-09-07

  A film that is biodegradable and water-sensitive (e.g., water-soluble, water-dispersible, etc.) in that it loses its integrity over time in the presence of water is provided. The film contains a biodegradable polyester, starch, water-soluble polymer, and plasticizer. The desired water-sensitive attributes of film may be achieved in the present invention by selectively controlling a variety of aspects of the film construction, such as the nature of the components employed, the relative amount of each component, the manner in which the film is formed, and so forth.

  提供了一种可生物降解且对水敏感（如水溶性、水分散性等）的薄膜，这种薄膜在有水的情况下会随着时间的推移而失去其完整性。这种薄膜含有可生物降解的聚酯、淀粉、水溶性聚合物和增塑剂。在本发明中，可以通过选择性地控制薄膜结构的各个方面，如所使用成分的性质、每种成分的相对量、薄膜的形成方式等，来实现薄膜所需的水敏特性。
• Process for preparation of modified polyethylene terphthalate with improved barrier, mechanical and thermal properties and products thereof
  申请人：ESTER INDUSTRIES LIMITED

  公开号：US10174162B2

  公开（公告）日：2019-01-08

  The present invention relates to a copolyester having intrinsic viscosity greater than 0.50 dL/gm, comprises: terephthalate polyester composition; and a modified transparent polybutylene naphthalate, wherein the modified polybutylene naphthalate comprises naphthalene dicarboxylic acid, 1,4-butane diol, and isophthalic acid or monoethylene glycol or diethylene glycol or cyclohexane dimethanol or polyethylene naphthalate, nucleating agent, and a modified nanoclay.

  本发明涉及一种本征粘度大于 0.50 dL/gm，包括：对苯二甲酸酯聚酯组合物；和改性透明聚萘二甲酸丁二醇酯，其中改性聚萘二甲酸丁二醇酯包括萘二羧酸、1,4-丁二醇和间苯二甲酸或单乙二醇或二甘醇或环己烷二甲醇或聚萘二甲酸乙二醇酯、成核剂和改性纳米粘土。