Preparation method for rosin vinyl ester monomer-styrene copolymerized material

A technology of rosin vinyl ester and styrene, which is applied in the field of preparation of rosin vinyl ester monomer and styrene copolymer materials, can solve the problems of low product conversion rate and complicated operation process, and achieve simple operation, easy popularization, good The effect of thermal stability

Inactive Publication Date: 2016-04-27
SHAANXI JUJIEHAN CHEM CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method first chlorates rosin resin acid, and then reacts with allyl alcohol to prepare allyl rosin resin acid, but the above method has the problems of complicated operation process and low product conversion rate

Method used

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Embodiment Construction

[0011] A method for preparing a rosin vinyl ester monomer and styrene copolymer material, characterized in that: 150g of DR is added to a flask, the temperature is raised to 100°C, and after DR is completely melted, hydroquinone and cetyl tris Add methylammonium chloride to the reaction system, start the stirring device; take 71.1g of GMA in the dropping funnel, and slowly add it dropwise to the reaction system; The reaction product is DR-GMA monomer; mix DR-GMA monomer with styrene, add a thermal initiator of 2.00% of the total mass of the resin, stir evenly, pour the mixture into a closed mold for pre-curing, and then heat up to 100°C for curing 120min, then lowered to room temperature to obtain DR-GMA monomer / styrene copolymer material.

[0012] According to the preparation method of a rosin vinyl ester monomer and styrene copolymer material according to the present invention, the flask is a four-necked flask on which a stirring device and a thermometer are installed. The ...

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Abstract

The invention provides a preparation method for a rosin vinyl ester monomer-styrene copolymerized material, which belongs to the field of material preparation. The preparation method is characterized by comprising the following steps: adding weighed DR into a flask, carrying out heating until DR is completely molten, adding weighed cetyl trimethyl ammonium chloride into a reaction system and starting a stirring device; slowly adding weighed GMA into the reaction system drop by drop; carrying heating to 120 DEG C for a reaction after completion of addition, stopping heating and collecting a reaction product, i.e., DR-GMA monomer; mixing the DR-GMA monomer with styrene, adding a thermal initiator, carrying out uniform mixing under stirring, then pouring the obtained mixture into an enclosed die for pre-curing; and carrying out heating and curing again and then carrying out cooling to normal temperature so as to obtain the DR-GMA monomer-styrene copolymerized material. Through the preparation method and modification of the preparation raw materials, the prepared DR-GMA monomer-styrene copolymerized material has a smooth and regular ruptured surface and good heat stability; and the preparation method is simple to operate and easy to promote.

Description

technical field [0001] The invention belongs to the field of material preparation, in particular to a preparation method of a rosin vinyl ester monomer and styrene copolymer material. Background technique [0002] In the field of material preparation, many raw materials come from natural products. Rosin is a natural product derived from the secretions of pine trees. The main component of rosin is abietic acid resin acid, and its molecular structure contains two active groups, a carboxyl group and a conjugated double bond. These two active centers can be used to chemically modify rosin to prepare high-performance materials. However, because rosin resin contains a large number of condensed ring structures, the viscosity of the resin is relatively high, which is not conducive to the processing and molding of the resin, and the resulting material is also relatively brittle. Disproportionated rosin (DR) is an important modified rosin product, which is obtained by using the doub...

Claims

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Application Information

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IPC IPC(8): C08F290/00C08F212/08C09F1/04
Inventor 李长英
Owner SHAANXI JUJIEHAN CHEM CO LTD
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