calcium terephthalate | 46190-31-2

• 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: calcium terephthalate
• 英文别名: calcium;terephthalate
• CAS: 46190-31-2
• 化学式: C₈H₄O₄*Ca
• 分子量: 204.195
• InChiKey: AAEHPKIXIIACPQ-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  -1.97
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  80.3
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  对苯二甲酸 在 calcium(II) nitrate tetrahydrate 、 吡啶 作用下， 以 甲醇 为溶剂， 反应 4.0h， 生成 calcium terephthalate
  参考文献：
  名称：

  Metal–organic fireworks: MOFs as integrated structural scaffolds for pyrotechnic materials

  摘要：

  提出了一种制定烟火材料的新方法，其中成分被绑定在一个框架中。使用氟化连接剂可以产生强烈的烟火效果，这可以与框架的结构维度相关联。

  DOI：

  10.1039/c5cc04174k

文献信息

• Electrostatic interactions between organic ions
  作者：Shuk-Ching Tam、Robert J. P. Williams

  DOI：10.1039/f19848002255

  日期：——

  Association constants of organic cations and anions with different charge separations, rigidity and shapes have been studied and have been compared with association constants of inorganic cations with the organic anions and also with the association constants of inorganic ions. Bjerrum's theory of ion-pair formation is applicable to spherical inorganic ions but not to ions which have anisotropic charge

  研究了具有不同电荷分离，刚性和形状的有机阳离子和阴离子的缔合常数，并将其与无机阳离子与有机阴离子的缔合常数以及无机离子的缔合常数进行了比较。Bjerrum的离子对形成理论适用于球形无机离子，但不适用于具有各向异性电荷分布和形状的离子。对于后者，电荷匹配成为缔合的重要因素，并且在离子为刚性离子时最有效。
• Sulfonated substantiallly random interpolymer-based absorbent materials
  申请人：——

  公开号：US20040081829A1

  公开（公告）日：2004-04-29

  The present invention pertains to absorbent polymer composition comprising A) one or more sulfonated substantially random interpolymers comprising repeating units derived from; a) ethylene and/or one or more alpha olefins; b) one or more sulfonated vinyl or vinylidene aromatic monomers; c) one or more vinyl or vinylidene aromatic monomers, or a combination of one or more vinyl or vinylidene aromatic monomers and one or more sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene monomers; and optionally, B) one or more polymers other than said sulfonated substantially random interpolymer. Uses of the compositions include the preparation of absorbent foams, fibers films and membranes for the preparation of absorbent articles for personal hygiene. These include diapers, sanitary napkins adult incontinence pads, and highly absorbent wipes, and dust pickups.

  本发明涉及一种吸收性聚合物组合物，包括A)一种或多种磺化的基本随机交联聚合物，其包括由以下重复单元衍生的：a)乙烯和/或一种或多种α-烯烃；b)一种或多种磺化的乙烯基或乙烯基苯单体；c)一种或多种乙烯基或乙烯基苯单体，或一种或多种立体位阻的脂肪族或环状脂肪族乙烯基或乙烯基苯单体的组合物；可选地，B)除所述磺化的基本随机交联聚合物外的一种或多种聚合物。该组合物的用途包括制备用于个人卫生的吸收性泡沫、纤维、膜和膜，包括尿布、卫生巾、成人失禁垫和高吸收性擦拭纸和除尘用品。
• Polyester films suitable for use in magnetic tapes
  申请人：Diafoil Company, Limited

  公开号：US04767657A1

  公开（公告）日：1988-08-30

  There is disclosed a polyester film suitable for use in magnetic tapes having the characteristics represented by the following equations: ##EQU1## wherein N.sub.1 is the number of peaks of surface projections per millimeter; h is the average height in .mu.m of the surface projections; .theta. is the average steepness in degree of the surface projections; H.sup.2 is the mean square height in .mu.m.sup.2 of the surface projections; and n is the average refractive index.

  公开了一种适用于磁带的聚酯薄膜，具有以下方程表示的特征：其中，N1是每毫米表面凸起峰数；h是表面凸起的平均高度，单位为微米；θ是表面凸起的平均陡度，以度为单位；H^2是表面凸起的平均平方高度，单位为微米的平方；n是平均折射率。
• Biaxially oriented polyester film
  申请人：Teijin Limited

  公开号：US04818581A1

  公开（公告）日：1989-04-04

  A biaxially oriented polyester film formed from an intimate mixture comprising (1) an aromatic polyester, and (2) 0.01 to 4% by weight, based on the aromatic polyester, of spherical fine particles of silica having (a) an average particle diameter of 0.05 to 4 .mu.m, (b) a particle diameter ratio, defined by the ratio of maximum diameter of minimum diameter, of from 1.0 to 1.2, and (c) a relative standard deviation (.sigma.) of particle size, of up to 0.5. A biaxially oriented polyester film formed from an intimate mixture comprising (1) an aromatic polyester, (2) 0.005 to 3% by weight, based on the aromatic polyester, of spherical fine particles of silica having the same properties as the above-mentioned (a), (b) and (c), and (3) 0.005 to 3% by weight, based on the aromatic polyester, of inert fine particles having an average particle diameter of 0.01 to 3 .mu.m and not exceeding the average particle diameter of the spherical fine particles of silica. The biaxially oriented films are useful for a magnetic recording medium.

  由（1）芳香族聚酯和（2）占芳香族聚酯重量0.01至4％的球形细小二氧化硅微粒混合物形成的双向拉伸聚酯薄膜，该细小二氧化硅微粒具有（a）平均粒径为0.05至4μm，（b）最大直径与最小直径之比定义为颗粒直径比为1.0至1.2，以及（c）颗粒大小的相对标准偏差（σ）不超过0.5。由（1）芳香族聚酯，（2）占芳香族聚酯重量0.005至3％的具有与上述（a），（b）和（c）相同特性的球形细小二氧化硅微粒，以及（3）占芳香族聚酯重量0.005至3％的惰性细小颗粒混合物形成的双向拉伸聚酯薄膜，其平均颗粒直径为0.01至3μm，且不超过球形细小二氧化硅微粒的平均颗粒直径。该双向拉伸薄膜可用于磁记录介质。
• Polyester films useful as magnetic tapes
  申请人：Mitsubishi Chemical Industries Limited

  公开号：US04096109A1

  公开（公告）日：1978-06-20

  A polyester film is disclosed which comprises (a) a polyester mainly consisting of polyethylene terephthalate which includes first inert particles being precipitated in the polyester-forming reaction system and having an average particle diameter of 1 to 3 microns and which shows a solution haze of 25 to 75% and (b) an additive amount of second inert substance particles which are added to said polyester (a) insoluble in said polyester (a), inert to the polyester-forming reaction and have an average particle diameter of 1 to 5 microns. The film is useful as a base of a magnetic tape.

  本发明公开了一种聚酯薄膜，包括（a）主要由聚对苯二甲酸乙二醇酯组成的聚酯，其中在聚酯形成反应体系中沉淀了平均粒径为1至3微米的第一惰性颗粒，且具有25至75％的溶液浑浊度，以及（b）添加到所述聚酯（a）中的第二惰性物质颗粒的添加量，其不溶于所述聚酯（a），惰性于聚酯形成反应，并具有平均粒径为1至5微米。该薄膜可用作磁带的基材。