Preparation method of emulsion type tert-butyl peroxyneo-caprate (BNP)

A new technology of tert-butyl caprate and peroxide, which is applied in the preparation of peroxy compounds, the preparation of organic compounds, chemical instruments and methods, etc. Low problems, to achieve stable product quality and high activity, increase product content and yield, and overcome the effects of low activity

Active Publication Date: 2012-05-09
LINZIZHENGHUA ACCESSORY INGREDIENT ZIBO
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, azo initiators have insurmountable disadvantages such as low activity and high toxicity, which affect the quality of high polymers such as polyvinyl chloride products, and the toxic substances in the production process are seriously harmful to the human body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment one: the preparation steps of emulsion type tert-butyl peroxyneodecanoate (BNP) are as follows:

[0012] (1) In a 500ml flask, add 22.5 grams of sodium hydroxide with a mass content of 90%, 40 grams of water, stir and cool to 5°C, and make a sodium hydroxide alkaline solution with a concentration of about 32%;

[0013] (2) 28 grams of tert-butyl hydroperoxide with a purity of 70.5% were added dropwise to the solution prepared in step (1), reacted for 30 minutes, and the temperature was controlled at 20° C.;

[0014] (3) Slowly add 55 grams of 80% octadecanoyl chloride solution in the flask after stirring evenly, the reaction temperature is controlled at 25°C to 30°C, and the addition is completed within 1.5 hours to 2 hours. After adding the octadecanoyl chloride solution Stir the reaction for 60 minutes;

[0015] (4) Stop stirring after the reaction finishes, leave standstill, the reaction mother liquor is separated, and the reaction product is washed with ...

Embodiment 2

[0019] Embodiment two: the preparation steps of emulsion type tert-butyl peroxyneodecanoate (BNP) are as follows:

[0020] (1) In a 500ml flask, add 22.5 grams of sodium hydroxide with a mass content of 90%, 40 grams of water, stir and cool to 5°C, and make a sodium hydroxide alkaline solution with a concentration of about 32%;

[0021] (2) 28 grams of tert-butyl hydroperoxide with a purity of 70.5% were added dropwise to the solution prepared in step (1), reacted for 30 minutes, and the temperature was controlled at 30° C.;

[0022] (3) Slowly add 54 grams of 80% octadecanoyl chloride solution in the flask after stirring evenly, the reaction temperature is controlled at 25°C to 30°C, and the addition is completed within 1.5 hours to 2 hours. Stir the reaction for 60 minutes;

[0023] (4) Stop stirring after the reaction finishes, leave standstill, the reaction mother liquor is separated, and the reaction product is washed with water until the pH value is 5~7, and the obtaine...

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PUM

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Abstract

The invention relates to a preparation method of an initiator for synthesizing a high polymer, in particular to a preparation method of emulsion type tert-butyl peroxyneo-caprate (BNP). According to the technical scheme of the invention, the preparation method of the emulsion type BNP comprises the following steps of: mixing octyl decanoyl chloride with an alkaline solution and tert-butyl hydrogen peroxide, stirring and reacting at the temperature of 10-40 DEG C; separating a mother liquor; and mixing a reaction product with a homogenized liquid prepared from an anti-freezing agent, an emulsifier, a dispersant and deionized water to obtain the emulsion type BNP. Due to the adoption of the method provided by the invention, the product content and yield are increased greatly, and convenience is brought to storage and transportation. Due to the adoption of the method, the process flow is simplified, the complex requirements on reaction equipment are eliminated, a reaction can be undergone under the mild and safe condition, and the product yield can be over 95 percent.

Description

technical field [0001] The invention relates to a preparation method of an initiator for high polymer synthesis, in particular to a preparation method of emulsion type tert-butyl peroxyneodecanoate (BNP). Background technique [0002] With the rapid development of the domestic polymer synthesis industry, the quality and demand of initiators for polymer synthesis have increased rapidly. As we all know, azo initiators, such as azobisisobutyronitrile and azobisisoheptanonitrile (ABVN), have long been used as initiators for the synthesis of high polymers such as polyvinyl chloride. However, azo initiators have insurmountable shortcomings such as low activity and high toxicity, which affect the quality of high polymers such as polyvinyl chloride products, and the toxic substances in the production process are seriously poisonous to the human body. [0003] Emulsion-type tert-butyl peroxyneodecanoate (BNP), as a high-efficiency initiator for high polymer synthesis, compared with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F4/34C07C409/38C07C407/00
Inventor 侯永正翟少华倪啟化许淑女
Owner LINZIZHENGHUA ACCESSORY INGREDIENT ZIBO
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