4-[6-(4-Carboxybenzoyl)oxyhexoxycarbonyl]benzoic acid | 79281-93-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4-[6-(4-Carboxybenzoyl)oxyhexoxycarbonyl]benzoic acid
• CAS: 79281-93-9
• 化学式: C₂₂H₂₂O₈
• 分子量: 414.412
• InChiKey: QUOPBWFWLSCVMO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  30
• 可旋转键数：
  13
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  127
• 氢给体数：
  2
• 氢受体数：
  8

文献信息

• Process for producing aromatic polyesters having an increased degree of polymerisation, these aromatic polyesters, process for producing molded articles composed thereof, and these molded articles
  申请人：TEIJIN LIMITED

  公开号：EP0020944A1

  公开（公告）日：1981-01-07

  A process for producing an aromatic polyester having an increased degree of polymerization, which comprises reacting a substantially linear, fiber forming aromatic polyester containing terminal carboxyl groups and having an aromatic dicarboxylic acid as a main acid component at an elevated temperature with a bis-cyclic imino ether compound of the formula (I) such as 2,2'-bis(2-oxazoline), 2,2'--bis(5,6-dihydro-4H-1,3-oxazine) thereby bonding the molecular chains of the aromatic polyester to each other by the terminal carboxyl groups thereof to rapidly form said aromatic polyester having and increased degree of polymerization. Said reaction can be carried out under atmospheric or elevated pressure. According to the process, an aromatic polyester having a low terminal carboxyl concentration and an increased degree of polymerization can be obtained. n =0 or 1; X1 and X2 typically are -CH2-CH2- or -CH2-CH2-CH2-: R1 and R2 typically are hydrogen or a monovalent hydrocarbon group; D typically is a divalent hydrocarbon group, e.g. ethylene, propylene, butylene.

  一种提高聚合度的芳香族聚酯的生产工艺，包括在高温下将含有末端羧基并以芳香族二羧酸为主要酸组分的基本线性、可形成纤维的芳香族聚酯与式 (I) 的双环亚胺醚化合物（如 2、2'-双（2-噁唑啉）、2,2'-双（5,6-二氢-4H-1,3-噁嗪），从而使芳香族聚酯的分子链通过其末端羧基相互键合，快速形成聚合度更高的芳香族聚酯。 所述反应可在常压或高压下进行。 根据该工艺，可以获得具有低端羧基浓度和更高聚合度的芳香族聚酯。 n =0 或 1； X1 和 X2 通常为-CH2- -或- - - -： R1 和 R2 通常是氢或一价烃基； D 通常是二价烃基，如乙烯、丙烯、丁烯。
• Method for reducing the terminal carboxyl group content of a saturated polyester, a saturated polyester having a reduced terminal carboxyl group content, and a molded article composed of such a saturated polyester
  申请人：TEIJIN LIMITED

  公开号：EP0030350A1

  公开（公告）日：1981-06-17

  Saturated polyesters having a reduced terminal carboxyl group content are produced by reacting a carboxyl-terminated, substantially linear, fiber-forming saturated polyester with a monocyclic imino ether compound of the formula e.g. or The monocyclic imino ether compound may be added in a melt-molding machine at a temperature above the temperature at which the saturated polyester melts, or a molded article composed of a carboxyl-terminated, substantially linear, fiber-forming saturated polyester may be treated with the monocyclic imino ether compound.

  末端羧基含量较低的饱和聚酯是通过将羧基末端的、基本线性的、可成纤维的饱和聚酯与式 如下的单环亚胺醚化合物反应制得的 例如 或 单环亚胺醚化合物可在高于饱和聚酯熔化温度的熔融成型机中加入，或者用单环亚胺醚化合物处理由羧基封端、基本线性、成纤的饱和聚酯组成的成型制品。
• Heat-shrinkable biaxially drawn polyamide film and process for preparaton thereof
  申请人：MITSUBISHI KASEI POLYTEC COMPANY

  公开号：EP0240632A2

  公开（公告）日：1987-10-14

  Disclosed is a heat-shrinkable biaxially drawn polyamide film which is formed from a homopolymer or copolymer of ε-caprolactam or a polyblend thereof, by a sequential biaxial drawing method and which has a density of 1.129 to 1.136 g/cm³ and an in-plane orientation index of 0.0535 to 0.0580. This film is prepared by the steps of drawing in the machine direction a substantially amorphous unoriented polyamide film at 45 to 65°C, a deformation rate of at least 10,000%/min and a draw ratio of 2.7 to 3.5 by a roll type longitu­dinal drawing method, gripping the ends of the film by tenter clips, drawing the film in the transverse direction at a film temperature not higher than 100°C, an average deformation rate of 2,000 to 10,000%/min and a draw ratio of 3 to 5, and heat-treating the film at 125 to 170°C while gripping the ends of the film by the tenter clips.

  本发明公开了一种可热收缩的双轴拉伸聚酰胺薄膜，它是由ε-己内酰胺的均聚物或共聚物或其混合物通过连续双轴拉伸法形成的，其密度为 1.129 至 1.136 g/cm³，平面内取向指数为 0.0535 至 0.0580。这种薄膜的制备步骤是：在 45 至 65 摄氏度、变形率至少为 10,000%/min 和拉伸比为 2.7 至 3 的条件下，沿机器方向拉伸基本无定形的无取向聚酰胺薄膜。5 的辊式纵向拉伸法，用拉伸夹夹住薄膜的两端，在薄膜温度不高于 100℃、平均变形率为 2,000 至 10,000%/min 和拉伸比为 3 至 5 的条件下沿横向拉伸薄膜，并在 125 至 170℃的温度下对薄膜进行热处理，同时用拉伸夹夹住薄膜的两端。
• Improved nucleated thermoplastic copolyetherester molding compositions
  申请人：GENERAL ELECTRIC COMPANY

  公开号：EP0318788A2

  公开（公告）日：1989-06-07

  Improved nucleated thermoplastic copolyetherester elastomers containing polybutylene terephthalate (PBT) and nucleating agents. PBT and nucleating agent blended with copolyehterester elastomers. substantially improves crystallization properties of the copolyetherester.

  含有聚对苯二甲酸丁二醇酯（PBT）和成核剂的改进型成核热塑性共聚醚酯弹性体。PBT 和成核剂与共聚醚酯弹性体混合后，共聚醚酯的结晶性能得到大幅改善。
• Thermoplastic copolyester elastomer binder
  申请人：E.I. DU PONT DE NEMOURS AND COMPANY

  公开号：EP0358846A2

  公开（公告）日：1990-03-21

  A polymer which is useful as a thermoplastic rubbery binder for oxidizer particles, such as HMX and RDX, for the preparation of low vulnerability gun propellants is provided by a segmented thermoplastic copolyester elastomer consisting essentially of a multiplicity of recurring intralinear long chain and short chain ester units connected head-to-tail through ester linkages, said long chain ester units being represented by a structure selected from the following group consisting of: and and said short chain ester units being represented by the following structure: wherein: G is a divalent radical remaining after removal of terminal hydroxyl groups from a poly(alkylene oxide) glycol having a carbon-to-oxygen ratio of about 2.0-4.3 and a molecular weight of about 600-6000; R is a divalent radical remaining after removal of carboxyl groups from a dicarboxylic acid having a molecular weight less than about 300; D is a divalent radical remaining after removal of hydroxyl groups from a linear diol having 2-8 carbon atoms and represented by the formula HO(CH2)2-8OH or the diol HO(CH2CH = CHCH2)OH;and T is a trivalent radical remaining after the removal of carboxyl groups from a tricarboxylic acid having a molecular weight less than about 350 and containing two vicinal carboxyl groups capable of forming a cyclic imide; with the proviso that the short chain ester units constitute about 30-65% by weight of the copolyester, at least about 50% of the R groups are 1,4-phenylene radicals, at least about 50% of the D groups are 1,6-hexamethylene radicals, and the sum of the percentages of the R groups which are not 1,4-phenylene radicals and of the D groups which are not 1,6-hexamethylene radicals is about 5-50%. For use as a propellant binder it is preferred that the copolyester have a melt index at 120°C by ASTM-D1238 of about 2-25 grams/10 minutes.

  一种聚合物可用作热塑性橡胶粘合剂，用于制备氧化剂微粒（如 HMX 和 RDX），以制备低毒性枪用推进剂，这种聚合物是一种分段式热塑性共聚酯弹性体，主要由多个重复出现的线内长链和短链酯单元通过酯连接头尾组成，所述长链酯单元的结构选自下组，包括 和 所述短链酯单元由以下结构表示： 其中 G 是二价基，从聚环氧烷二醇中去除末端羟基后剩余，其碳氧比约为 2.0-4.3，分子量约为 600-6000； R 是二羧酸去除羧基后剩余的二价基，分子量小于约 300； D 是具有 2-8 个碳原子并由式 HO(CH2)2-8OH 或二元醇 HO( CH = CH )OH 表示的线性二元醇除去羟基后剩余的二价基；以及 T 是三羧酸中去除羧基后剩余的三价基，分子量小于约 350，含有两个可形成环状亚胺的羧基； 但条件是短链酯单元占共聚聚酯重量的约 30-65%，至少约 50%的 R 基为 1，4-亚苯基基，至少约 50%的 D 基为 1，6-六亚甲基基，非 1，4-亚苯基基的 R 基和非 1，6-六亚甲基基的 D 基的百分比之和约为 5-50%。 用作推进剂粘合剂时，根据 ASTM-D1238 标准，共聚聚酯在 120°C 时的熔融指数最好为 2-25 克/10 分钟。