23128-74-7 Usage
Description
3,3'-Bis(3,5-di-tert-butyl-4-hydroxyphenyl)-N,N'-hexamethylenedipropionamide, also known as Antioxidant 1098, is a sterically hindered phenolic antioxidant. It is a white-like powder with good compatibility with materials, low volatility, and minimal impact on the color of materials before and after aging. 3,3'-Bis(3,5-di-tert-butyl-4-hydroxyphenyl)-N,N'-hexamethylenedipropionamide is an efficient, non-discoloring stabilizer for various organic substrates, including plastics, synthetic fibers, adhesives, and elastomers, with particular effectiveness in polyamide polymers and fibers.
Uses
Used in Polymer Stabilization:
3,3'-Bis(3,5-di-tert-butyl-4-hydroxyphenyl)-N,N'-hexamethylenedipropionamide is used as a stabilizer in the polymer industry for its efficiency in preventing oxidative degradation, which extends the lifespan and maintains the quality of the materials. Its non-discoloring property is particularly beneficial for applications where color retention is crucial.
Used in Polyamide Polymers and Fibers:
In the polyamide industry, 3,3'-Bis(3,5-di-tert-butyl-4-hydroxyphenyl)-N,N'-hexamethylenedipropionamide is used as an antioxidant to stabilize polyamide molded parts, fibers, and films. Its application helps to protect these materials from degradation, ensuring their durability and performance over time.
Used in Other Polymers:
3,3'-Bis(3,5-di-tert-butyl-4-hydroxyphenyl)-N,N'-hexamethylenedipropionamide is also recommended for use in other polymers such as polyacetals, polyesters, polyurethanes, adhesives, and elastomers. Its stabilizing properties contribute to the overall quality and longevity of these materials.
Physical Properties:
The solubility of 3,3'-Bis(3,5-di-tert-butyl-4-hydroxyphenyl)-N,N'-hexamethylenedipropionamide varies depending on the solvent and temperature. At 20 °C, it is soluble in acetone, chloroform, ethyl acetate, methanol, and water, with varying levels of solubility. At 90 °C, it shows increased solubility in caprolactam and a mixture of 95% caprolactam with 5% water.
Features/benefits
Antioxidant 1098 provides excellent processing and long-term thermal stability as well as excellent initial resin color. The product is superior to copperbased systems used as stabilizers for polyamides with respect to color and resistance to extraction. It has excellent compatibility with polyamides and other substrates and low volatility.
Flammability and Explosibility
Notclassified
Check Digit Verification of cas no
The CAS Registry Mumber 23128-74-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,1,2 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 23128-74:
(7*2)+(6*3)+(5*1)+(4*2)+(3*8)+(2*7)+(1*4)=87
87 % 10 = 7
So 23128-74-7 is a valid CAS Registry Number.
InChI:InChI=1/C40H64N2O4/c1-37(2,3)29-23-27(24-30(35(29)45)38(4,5)6)17-19-33(43)41-21-15-13-14-16-22-42-34(44)20-18-28-25-31(39(7,8)9)36(46)32(26-28)40(10,11)12/h23-26,45-46H,13-22H2,1-12H3,(H,41,43)(H,42,44)
23128-74-7Relevant articles and documents
Synthesis process of antioxidant 1098
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Paragraph 0022-0031, (2021/03/31)
The invention provides a synthesis process of an antioxidant 1098 (N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexamethylenediamine, which comprises the following steps: carrying out ammonolysis reaction on beta-(3,5-di-tert-butyl-4-hydroxyphenyl)methyl propionate, which is synthesized by addition reaction of 2,6-di-tert-butylphenol and methyl acrylate, and 1,6-hexamethylenediamine toobtain the antioxidant 1098. The preparation method is suitable for large-scale production and industrial production of the antioxidant 1098, cost saving is achieved through effective recovery and circulation of the solvent, and the whole reaction process is environmentally friendly through centralized treatment of waste gas and the like.
Synthesis, antioxidant properties, and reaction kinetics of aliphatic diamine bridged hindered phenols
Li,Guo,Wang,Shi
, p. 2797 - 2803 (2017/03/22)
A series of aliphatic diamine bridged hindered phenols was synthesized. Their antioxidant activity was evaluated for assessing the role of bridging groups in trapping 1,1-diphenyl-2-picrylhydrazyl radical (DPPH?) and in 2,2'-azodi(isobutyronitrile) (AIBN) induced oxidation of styrene. The study of reaction kinetics of scavenging of the peroxyl radicals demonstrated that the scavenging ability of the DPPH free radical decreased when length of the bridging groups increased. However, the ability to protect styrene from AIBN-induced oxidation increased with increased length of the bridging groups.
Process for the preparation of polyalkyl-1-oxa-diazaspirodecane compounds
-
, (2008/06/13)
The invention relates to a process for the preparation of polyalkyl-1-oxa-diazaspirodecane compounds, which can be used as highly active light stabilizers for polymers. The reaction is carried out in a solvent mixture of at least one alcohol and if appropriate an inert organic solvent in the presence of solid alkali metal hydroxide or a corresponding amount of a mixture of solid alkali metal hydroxide and water as the sole catalyst. The process offers the advantage that, by using a solvent mixture and dispensing with a phase transfer catalyst, a higher rate of reaction and therefore higher product quality with the same yield are achieved. By dispensing with a phase transfer catalyst, which remains in the waste water and must be disposed of expensively, and by the reusability of the solvent mixture, the process is more environment-friendly and more economical than processes known to date.