Hindered phenol antioxidant with new structure and preparation method thereof

A hindered phenol antioxidant and a new structure technology are applied in the field of the new structure hindered phenol antioxidant and its preparation, which can solve the problems of difficulty in synthesis and reduce the application amount, and achieve the effects of increasing the dispersion effect, and the synthesis process is simple and environmentally friendly.

Pending Publication Date: 2020-11-06
运城鸿博化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, poly hindered phenol antioxidants are mainly antioxidants 1330, 3114 and 1076. However, due to the difficulty of synthesis and market factors, these three products are less used.

Method used

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  • Hindered phenol antioxidant with new structure and preparation method thereof
  • Hindered phenol antioxidant with new structure and preparation method thereof
  • Hindered phenol antioxidant with new structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The invention provides a hindered phenol antioxidant I with a new structure, which has a structure shown in formula (1):

[0035]

[0036] Wherein, n is an integer of 1-3, and m is an integer of 0-2.

[0037] Specifically, its structure is the following three:

[0038]

[0039] Wherein, n is 1, and m is 2.

[0040]

[0041] Wherein, n is 2, and m is 1.

[0042]

[0043] Among them, n is 3, and m is 0.

[0044] Another aspect of the present invention provides a kind of method of new structure hindered phenolic antioxidant I, comprises the following steps:

[0045] 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid and a certain amount of aluminum isopropoxide are reacted in an organic solvent at a certain temperature for a certain period of time to form a new structure hindered phenol antioxidant I; Described organic solvent is benzene, toluene, xylene, cyclohexane, pentane, hexane, heptane, octane, cyclohexanone, chlorobenzene, dichlorobenzene, methylen...

Embodiment 2

[0076] In order to set forth the present invention more clearly, concrete experiment will be adopted to analyze below:

[0077] ①Preparation of hindered phenol antioxidant I with new structure:

[0078] Add 27.7 grams of 3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid, 6.8 grams of aluminum isopropoxide and 100 milliliters of toluene into the reaction flask, stir and heat to 85-90 ° C, keep micro-distillation Remove the reaction by-product isopropanol, react for about 2 hours, add 100 ml of water to distill and recover toluene after the reaction is completed, filter and dry to obtain tri[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propane acid] aluminum (compound 3:C 51 h 75 o 9 AL).

[0079] ②Preparation of hindered phenol antioxidant II with new structure:

[0080] Add 27.7 grams of 3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid, 10.2 grams of aluminum isopropoxide and 100 milliliters of toluene into the reaction flask, stir and heat to 85-90 ° C, keep micro-distill...

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PUM

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Abstract

The invention provides a hindered phenol antioxidant with a new structure, and a preparation method thereof, wherein the hindered phenol antioxidant with the new structure is one or more of a hinderedphenol antioxidant I with the new structure, a hindered phenol antioxidant II with the new structure and a hindered phenol antioxidant III with the new structure. According to the invention, the hindered phenol antioxidant compound with a new structure is designed and synthesized, the structural characteristics of antioxidants 1010 and 1076 are combined, the hindered phenol antioxidant compound has polysubstituted hindered phenol functional groups, and long-chain fatty acid can be used for improving the dispersion effect of the antioxidants; and the synthesis process is simple and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of polymer antioxidants, in particular to a hindered phenol antioxidant with a new structure and a preparation method thereof. Background technique [0002] Antioxidants are a class of chemical substances that can delay or inhibit the oxidation process of polymers when only a small amount exists in the polymer system, thereby preventing the aging of polymers and prolonging their service life. Since Alert L et al. discovered polyphenolic compounds with antioxidant properties in 1967, many different antioxidants have come out one after another. Such as antioxidants 1010, 1076, 1098, 1024, 1330, 3114 and 1076 and so on. At present, the main polyhindered phenol antioxidants are antioxidants 1330, 3114 and 1076. However, due to the difficulty in synthesis and market factors, these three products are less used. Contents of the invention [0003] In order to solve the above problems, the present invention discl...

Claims

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Application Information

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IPC IPC(8): C07F5/06
CPCC07F5/069
Inventor 刘俊丽赵含江赵腾谢旭国荆翠玲
Owner 运城鸿博化工有限公司
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