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Preparation method of solvent type bis-(2-ethoxy)ethyl peroxydicarbonate (EEP)

A technology of peroxydicarbonate and ethoxyethyl ester, which is applied to the preparation of peroxy compounds, the preparation of organic compounds, chemical instruments and methods, etc., can solve the problems of high polymers such as polyvinyl chloride product quality, low activity, To solve the problem of high toxicity, to achieve the effect of stable product quality, high activity, overcoming low activity, and increasing product content and yield

Inactive Publication Date: 2012-05-09
LINZIZHENGHUA ACCESSORY INGREDIENT ZIBO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 solvent type bis(2-ethoxy)ethyl peroxydicarbonate (EEP) are as follows:

[0012] (1) In a 500ml flask, add 100 grams of 20% sodium hydroxide solution and 100 grams of water, stir and cool to 10°C to make a sodium hydroxide alkaline solution with a concentration of about 10%;

[0013] (2) Slowly add 55 grams of 2-ethoxyethyl chloroformate with a purity of 97% dropwise to the solution prepared in step (1), the reaction temperature is controlled at 20°C to 30°C, and the reaction temperature is 1 hour to 1.5 hours After adding, stir and react for 10 minutes after adding;

[0014] (3) Stop stirring after the reaction is over, let it stand, separate the reaction mother liquor, and wash the reaction product with water until the pH value is 5 to 7;

[0015] (4) After pouring the kettle at a temperature of 5°C, deep freeze at a temperature of -18°C for 11 to 12 hours;

[0016] (5) Add 28 grams of toluene to the reaction product obtained...

Embodiment 2

[0018] Embodiment two: the preparation steps of solvent type bis(2-ethoxy)ethyl peroxydicarbonate (EEP) are as follows:

[0019] (1) In a 500ml flask, add 100 grams of 20% sodium hydroxide solution and 40 grams of water, stir and cool to 10°C to make a sodium hydroxide alkaline solution with a concentration of about 14.3%;

[0020] (2) Slowly add 55 grams of 2-ethoxyethyl chloroformate with a purity of 97% dropwise to the solution prepared in step (1), the reaction temperature is controlled at 20°C to 30°C, and the reaction temperature is 1 hour to 1.5 hours After adding, stir and react for 10 minutes after adding;

[0021] (3) Stop stirring after the reaction is over, let it stand, separate the reaction mother liquor, and wash the reaction product with water until the pH value is 5 to 7;

[0022] (4) After pouring the kettle at a temperature of 5°C, deep freeze at a temperature of -18°C for 11 to 12 hours;

[0023] (5) Add 28 grams of toluene to the reaction product obtaine...

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Abstract

The invention relates to an initiator for the synthesis of a high polymer, and specifically relates to a preparation method of solvent type bis-(2-ethoxy)ethyl peroxydicarbonate (EEP). The technical scheme comprises the following steps: mixing 2-ethoxyethyl chloroformate and an alkaline solution for reaction at 15-30 DEG C; washing the reaction product until the pH value is 5-7; pouring into a kettle at 5 DEG C; carrying out deep freezing at -18 DEG C for 11-12 hours; and adding a right amount of solvent to obtain the solvent type EEP. The preparation method of solvent type EEP simplifies the process flow, overcomes the complex requirements for reaction equipment, enables the reaction to be carried out in a moderate and safe environment, greatly improves the content and yield of the product and ensures that the yield can be up to 95% or above.

Description

technical field [0001] The invention relates to an initiator for high polymer synthesis, in particular to a preparation method of solvent-type bis(2-ethoxy)ethyl peroxydicarbonate (EEP). 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] Bis(2-ethoxy)ethyl peroxydicarbonate (EEP), as a high-efficiency initiator for polymer synthesis, compared with common azo initiators, in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C409/32C07C407/00
Inventor 侯永正翟少华倪啟化许淑女
Owner LINZIZHENGHUA ACCESSORY INGREDIENT ZIBO
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