2,7-二甲基辛二酸 | 1188-08-5

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 2,7-二甲基辛二酸
• 英文名称: 2,7-dimethyl-octanedioic acid
• 英文别名: 2,7-Dimethyl-octandisaeure；2,7-Dimethyl-korksaeure；α,α'-Dimethylsuberinsaeure；2,7-Dimethyloctanedioic acid
• CAS: 1188-08-5
• 化学式: C₁₀H₁₈O₄
• 分子量: 202.251
• InChiKey: TYKNYXDGHLPJHT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  14
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 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：

  2,7-二甲基辛二酸 在 氯化亚砜 、 溴 作用下， 生成 2,7-dibromo-2,7-dimethyl-octanedioic acid dimethyl ester
  参考文献：
  名称：

  Steele, Journal of the American Chemical Society, 1931, vol. 53, p. 286

  摘要：

  DOI：
• 作为产物：
  描述：

  辛烷-2,2,7,7-四羧酸 生成 2,7-二甲基辛二酸
  参考文献：
  名称：

  Buchta,E.; Andree,F., Justus Liebigs Annalen der Chemie, 1961, vol. 639, p. 9 - 24

  摘要：

  DOI：

文献信息

• The regiospecific palladium catalysed hydrocarboxylation of alkenes under mild conditions
  作者：Howard Alper、James B. Woell、Bertrand Despeyroux、David J. H. Smith

  DOI：10.1039/c39830001270

  日期：——

  Alkenes react with carbon monoxide, water, oxygen, hydrochloric acid, and palladium and copper chlorides, to give branched chain acids in good yields.

  烯烃与一氧化碳，水，氧气，盐酸以及钯和氯化铜反应，以高收率得到支链酸。
• Polyurethane and molded article comprising the same
  申请人：Kuraray Co., Ltd.

  公开号：US05606005A1

  公开（公告）日：1997-02-25

  A polyurethane made of polyester diol units, organic diisocyanate units and units from a chain extender, wherein the polyester diol units contain dicarboxylic acid units and diol units, wherein at least 30 mole % of the dicarboxylic acid units are units derived from 3,8-dimethyldecanedioic acid, 3,7-dimethyldecanedioic acid or a mixture thereof, and wherein the polyester diol units have a number-average molecular weight in a range from 500 to 6000 is provided along with the polyester diol for preparing the polyurethane, polyurethane fibers prepared from the polyurethane, a molded article prepared from the polyurethane and processes for producing the polyurethane, polyester diol, dimethyldecanedioic acids and dimethyldecanedials used to prepare the dimethyldecanedioic acids; where the polyurethane and fibers produced therefrom are superior in various properties such as hydrolytic resistance, heat resistance, resistance to hot water, cold resistance, fungal resistance and mechanical performances e.g., strength at break and elongation at break, as well as injection moldability and the fibers are dyeable under high-temperature and high-pressure conditions and are superior, after dyeing, in tensile strength and elongation, elastic recovery, fungal resistance, resistance to chlorine and color fastness.

  提供了一种聚酯二醇单元、有机二异氰酸酯单元和链延伸剂单元制成的聚氨酯，其中聚酯二醇单元包含二羧酸单元和二元醇单元，其中至少30摩尔％的二羧酸单元是由3,8-二甲基癸二酸、3,7-二甲基癸二酸或其混合物衍生的单元，并且聚酯二醇单元的数均分子量在500至6000的范围内。同时提供了用于制备聚氨酯的聚酯二醇、由聚氨酯制备的聚氨酯纤维、由聚氨酯制备的成型品以及用于生产聚氨酯、聚酯二醇、二甲基癸二酸和二甲基癸二醛的工艺；其中，由聚氨酯和制备自聚氨酯的纤维在各种性能方面优越，如耐水解性、耐热性、耐热水性、耐寒性、抗真菌性和机械性能（例如断裂强度和断裂伸长），以及注射成型性能，纤维在高温高压条件下可染色，并且在染色后具有优异的拉伸强度和伸长率、弹性恢复、抗真菌性、抗氯性和色牢度。
• REUSABLE PRINT MEDIUM AND METHOD OF MANUFACTURING THEREOF
  申请人：OCE TECHNOLOGIES B.V.

  公开号：US20130137805A1

  公开（公告）日：2013-05-30

  The present invention relates to a reusable print medium comprising a substrate and a sacrificial layer. The sacrificial layer contains a hotmelt composition at least comprising an amorphous material. The amorphous material is a resin being a reaction product of a first monomer A, said first monomer A being a polyhydroxyl alcohol comprising X hydroxyl functional groups, wherein X≧2, monomer A optionally comprises a primary or secondary amine functionality; a second monomer B, being an aromatic monocarboxylic acid; a third monomer C, said third monomer C being able to form an ester linkage with an alcohol and/or an amide linkage with a primary or secondary amine; and optionally, a fourth monomer D, being an aromatic monocarboxylic acid different from the second monomer B. The sacrificial layer including the printed image may be removed from the substrate by applying heat. A new sacrificial layer may be applied such that the reusable print medium is ready to be reused. The present invention also relates to a method of manufacturing a reusable print medium according to the present invention, a method of printing and recycling such a print medium and an apparatus for printing and recycling such a print medium.

  本发明涉及一种可重复使用的印刷介质，包括基底和牺牲层。牺牲层含有至少包括非晶态材料的热熔组合物。该非晶态材料是一种树脂，是第一单体A的反应产物，第一单体A是一种聚羟基醇，包括X个羟基官能团，其中X≥2，单体A可选包括一种主链或侧链氨基官能团；第二单体B是一种芳香单羧酸；第三单体C能够与醇形成酯键和/或与一种主链或侧链氨基形成酰胺键；可选地，第四单体D是一种与第二单体B不同的芳香单羧酸。可以通过施加热量从基底中去除包括印刷图像的牺牲层。可以应用新的牺牲层，使可重复使用的印刷介质准备好被重用。本发明还涉及一种制造可重复使用的印刷介质的方法，一种印刷和回收这样的印刷介质的方法，以及一种印刷和回收这样的印刷介质的装置。
• New di-aldehyde and its use in the preparation of new urethanes for molded articles
  申请人：KURARAY CO., LTD.

  公开号：EP0712829A2

  公开（公告）日：1996-05-22

  The present invention provides a polyurethane comprising a polyester diol component, an organic diisocyanate component and a chain extender component, 30 mole % or more of dicarboxylic acid units constituting said polyester diol being units from 3,8-dimethyldecanedioic acid unit and/or units from 3,7-dimethyldecanedioic acid unit, said polyester diol having a number-average molecular weight of 500 to 6000; a molded article comprising the same; a polyurethane fiber comprising the same; and said polyester diol. The present invention provides a process for producing a dimethyldecanedioic acid represented by the general formula (II)         HOOC-CH₂-CH(CH₃)-CH₂-CH₂-CH₂-CH(A)-CH(B)-CH₂-COOH     (II) wherein either of A and B represents a methyl group and the rest represents a hydrogen atom, which comprises oxidizing a dimethyldecanedial represented by the general formula (I)         OHC-CH₂-CH(CH₃)-CH₂-CH₂-CH₂-CH(A)-CH(B)-CH₂-CHO     (I) wherein either of A and B represents a methyl group and the rest represents a hydrogen atom. The present invention provides a dimethyldecanedial represented by the general formula (I). Furthermore, the present invention provides a process for producing a dimethyldecanedial represented by the general formula (I), comprising hydroformylating a diolefin represented by the general formula (III)         CH₂=C(CH₃)-CH₂-CH₂-CH₂-CH(A)-CH(B)=CH₂     (III) wherein either of A and B represents a methyl group and the rest represents a hydrogen atom. The polyurethane of the present invention is superior in various properties such as resistance to hydrolysis, heat resistance, resistance to hot water, cold resistance, fungal resistance and mechanical performances e.g., strength at break and elongation at break, as well as injection moldability. The polyurethane fiber of the present invention is superior in heat resistance, resistance to hot water, cold resistance and resistance to hydrolysis, and is dyeable under high-temperature and high-pressure conditions. Furthermore, it is superior, after dyeing, in tensile strength and elongation, elastic recovery, fungal resistance, resistance to chlorine and color fastness. The dimethyldecanedial of the present invention is useful as a raw material of production of the dimethyldecanedioic acid represented by the general formula (II). Furthermore, the polyester diol containing the dimethyldecanedioic acid as a dicarboxylic acid component, shows excellent resistance to hydrolysis and is useful as a raw material for producing high-performance polyurethanes.

  本发明提供了一种聚氨酯，包括聚酯二元醇组分、有机二异氰酸酯组分和扩链剂组分，构成所述聚酯二元醇的二羧酸单元中30摩尔％或更多是来自3,8-二甲基癸二酸单元和/或来自3,7-二甲基癸二酸单元的单元，所述聚酯二元醇的数均分子量为500至6000；由其构成的模塑制品；由其构成的聚氨酯纤维；以及所述聚酯二元醇。 本发明提供了一种生产通式 (II) 所代表的二甲基癸二酸的工艺 hooc-ch₂-ch(ch₃)-ch₂-ch₂-ch₂-ch(a)-ch(b)-ch₂-cooh (ii) 其中 A 和 B 之一代表甲基，其余代表氢原子，包括氧化通式 (I) 所代表的二甲基癸二醛 OHC-CH₂-CH(CH₃)-CH₂-CH₂-CH₂-CH(A)-CH(B)-CH₂-CHO (I) 其中 A 和 B 之一代表甲基，其余代表氢原子。 本发明提供了通式（I）所代表的二甲基癸二醛。 此外，本发明还提供了一种生产通式(I)所代表的二甲基癸二醛的工艺，包括将通式(III)所代表的二烯烃进行氢甲酰化反应 ch₂=c(ch₃)-ch₂-ch₂-ch₂-ch(a)-ch(b)=ch₂ (iii) 其中 A 和 B 之一代表甲基，其余代表氢原子。 本发明的聚氨酯在耐水解性、耐热性、耐热水性、耐寒性、耐真菌性、机械性能（如断裂强度和断裂伸长率）以及注塑成型性等各种性能方面都非常优越。 本发明的聚氨酯纤维具有优异的耐热性、耐热水性、耐寒性和耐水解性，并可在高温高压条件下染色。此外，染色后的拉伸强度和伸长率、弹性恢复、抗真菌性、抗氯性和色牢度也更出色。 本发明的二甲基癸二醛可用作生产通式（II）所代表的二甲基癸二酸的原料。此外，含有作为二羧酸成分的二甲基癸二酸的聚酯二元醇具有优异的耐水解性，可用作生产高性能聚氨酯的原料。
• Reusable print medium and method of manufacturing thereof
  申请人：Océ-Technologies B.V.

  公开号：EP2596960A2

  公开（公告）日：2013-05-29

  The present invention relates to a reusable print medium (200) comprising a substrate (201) and a sacrificial layer (202). The sacrificial layer contains a hotmelt composition at least comprising an amorphous material. The amorphous material is a resin being a reaction product of a first monomer A, said first monomer A being a polyhydroxyl alcohol comprising X hydroxyl functional groups, wherein X ≥ 2, monomer A optionally comprises a primary or secondary amine functionality; a second monomer B, being an aromatic monocarboxylic acid; a third monomer C, said third monomer C being able to form an ester linkage with an alcohol and/or an amide linkage with a primary or secondary amine; and optionally, a fourth monomer D, being an aromatic monocarboxylic acid different from the second monomer B. The sacrificial layer including the printed image may be removed from the substrate by applying heat. A new sacrificial layer may be applied such that the reusable print medium is ready to be reused. The present invention also relates to a method of manufacturing a reusable print medium according to the present invention and a method of printing and recycling such a print medium.

  本发明涉及一种可重复使用的打印介质（200），它包括一个基底（201）和一个牺牲层（202）。牺牲层包含一种热熔胶组合物，至少包括一种非晶材料。无定形材料是一种树脂，是第一单体 A 的反应产物，所述第一单体 A 是一种多羟基醇，包含 X 个羟基官能团，其中 X ≥ 2，单体 A 可选择包含伯胺或仲胺官能团；第二单体 B，为芳香族单羧酸； 第三单体 C，所述第三单体 C 能与醇形成酯连接和/或与伯胺或仲胺形成酰胺连接；以及 第四单体 D，为不同于第二单体 B 的芳香族单羧酸。可通过加热将包括印刷图像的牺牲层从基底上去除。然后再涂上一层新的牺牲层，这样可重复使用的打印介质就可以重复使用了。 本发明还涉及根据本发明制造可重复使用打印介质的方法，以及打印和回收这种打印介质的方法。