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Hindered amine antioxidant and polyethylene material

A technology of hindered amines and antioxidants, applied in the field of organic chemistry, can solve the problems of easy dissolution and poor compatibility of antioxidants, and achieve the effects of good compatibility, not easy to color, and good anti-solvent extraction performance

Active Publication Date: 2018-06-15
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a hindered amine antioxidant and polyethylene material to overcome the problems of poor compatibility and easy dissolution of antioxidants in the prior art

Method used

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  • Hindered amine antioxidant and polyethylene material
  • Hindered amine antioxidant and polyethylene material
  • Hindered amine antioxidant and polyethylene material

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Embodiment 7

[0058] The reaction that embodiment 7 relates to is:

[0059]

Embodiment 8

[0060] The reaction that embodiment 8 relates to is:

[0061]

Embodiment 1

[0063] Synthesis of N-(4-bromophenyl)acryloyl chloride: Accurately weigh 60g of p-bromoaniline and 67.6g of N,N-diisopropylethylamine and dissolve them in 1.5L of tetrahydrofuran, slowly add propylene dropwise while stirring at 0°C 34.7 g of acid chloride was reacted at 25°C for 4 hours. Add saturated NH to the reaction mixture 4 Cl solution 1L, the reaction was terminated, and then extracted with 3L ethyl acetate, Na 2 SO 4 Dehydrated, filtered, and dried under vacuum at 30°C to obtain N-(4-bromophenyl)acrylamide.

[0064] Synthesis of 3,3'dodecylamine-bis-(4-bromophenylhydrazine)amide: Accurately weigh 60g N-(4-bromophenyl)acryloyl chloride and dissolve in 1.0L ethanol, N 2 For protection, 24.6 g of dodecylamine was slowly added dropwise while stirring at 25°C, and reacted at 85°C for 72 hours. The reacted mixed solution was concentrated in vacuo and purified by silica gel column chromatography. The eluent petroleum ether:ethyl acetate=10:1 was used to obtain 3,3'dodecyl...

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Abstract

The invention discloses a hindered amine antioxidant and a polyethylene material, wherein the hindered amine antioxidant comprises the following structure (I) defined in the specification, R1 is alkyl, R2 and R3 are selected from hydrogen or the following general formula (II), at least one of R2 and R3 is selected from the following general formula (II) defined in the specification, R4 is chain-like hydrocarbonyl, and R5, R6, R7, R8, R9, R10, R11, R12, R13, R14 and R15 are independently selected from hydrogen or alkyl. According to the present invention, the hindered amine antioxidant has advantages of good compatibility with polymers, good anti-migration performance and good anti-solvent-extraction performance, can be used for the anti-aging of a variety of polymer materials, has the light color, and is not easily colored.

Description

technical field [0001] The invention relates to a hindered amine antioxidant and a polyethylene material, belonging to the technical field of organic chemistry. Background technique [0002] Antioxidant is an anti-aging agent often added to polymer materials, which can prevent polymer materials from losing their performance due to heat and oxygen during processing, storage and use. Commonly used antioxidants include hindered phenolic antioxidants. Agents and hindered amine antioxidants, among which hindered amine antioxidants can not only prevent thermal oxidation of polymer materials, but also prevent photooxidation, so they are widely used in the field of polymer materials. [0003] At present, the main antioxidants used in polyethylene materials are mostly hindered phenolic antioxidants, while amine antioxidants are generally easy to color and are usually not suitable for plastic products. However, amine antioxidants have more excellent antioxidant properties than hinder...

Claims

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Application Information

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IPC IPC(8): C08K5/20C08K5/00C08L23/06
CPCC08K5/00C08K5/20C08L23/06
Inventor 宋磊王华王俊李翠勤张瑞杨勇施伟光任鹤高宇新张志秋王玉如王斯晗王嘉明郭常辉宫向英姜进宪马丽杨琦王文燕孙彬彬和树立李冬霞张怀志梁利伟田炳权李波
Owner PETROCHINA CO LTD
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