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Acrylic hydroxyethyl glycidyl phthalate and preparation method thereof

A technology of hydroxyethyl phthalate and glycidyl acrylate, which is applied in the direction of organic chemistry, can solve the problems of poor anti-yellowing performance and high viscosity, and achieve the effect of small cohesion, low viscosity and wide application

Pending Publication Date: 2021-11-05
JIANGSU HIMONIA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has the disadvantages of high viscosity, fluidity, leveling and poor anti-yellowing performance in the application process.

Method used

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  • Acrylic hydroxyethyl glycidyl phthalate and preparation method thereof
  • Acrylic hydroxyethyl glycidyl phthalate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of glycidyl acrylate hydroxyethyl phthalate, the structural end of the hydroxyethyl acrylate / propyl glycidyl phthalate contains both carbon-carbon double bonds and epoxy groups, and its structural formula is:

[0018] The physical and chemical properties of the hydroxyethyl phthalate glycidyl acrylate are: viscosity: 1500-2500mpa.S / 25°C, flash point: 87°C, appearance: colorless or light yellow liquid, boiling point: 230°C, water soluble Properties: Slightly soluble in water, layered with water, Density: 1.078g / cm 3 .

[0019] The preparation method of above-mentioned hydroxyethyl phthalate glycidyl acrylate comprises the following steps:

[0020] Step 1: Esterification and condensation: react hydroxyethyl acrylate with a molar ratio of 1:1 and phthalic acid at 90°C and use sulfuric acid as a catalyst with a concentration of 0.2% to 0.9% to obtain a half-acid half-ester;

[0021] Step 2: ring opening: react the product obtained in step 1 with epichlorohydrin u...

Embodiment 2

[0024] A kind of glycidyl acrylate hydroxyethyl phthalate, the structural end of the hydroxyethyl phthalate glycidyl acrylate contains both carbon-carbon double bonds and epoxy groups, and its structural formula is:

[0025]

[0026] The physical and chemical properties of the hydroxyethyl phthalate glycidyl acrylate are: viscosity: 1500-2500mpa.S / 25°C, flash point: 87°C, appearance: colorless or light yellow liquid, boiling point: 230°C, water soluble Properties: Slightly soluble in water, layered with water, Density: 1.078g / cm 3 .

[0027] The preparation method of above-mentioned hydroxyethyl phthalate glycidyl acrylate comprises the following steps:

[0028] Step 1: Esterification and condensation: react hydroxyethyl acrylate with a molar ratio of 1:1 and phthalic acid at 100°C with sulfuric acid at a concentration of 0.2% to 0.9% as a catalyst to obtain a half-acid half-ester;

[0029] Step 2: ring opening: react the product obtained in step 1 with epichlorohydrin un...

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Abstract

The invention discloses hydroxyethyl / propyl glycidyl phthalate acrylate and a preparation method thereof, and belongs to the field of organic synthesis. The preparation method comprises the steps that: allyl ester hydroxyl ester and phthalic acid (or anhydride) react to obtain half acid and half ester; the half acid and half ester react with epichlorohydrin to obtain long-chain epichlorohydrin; then ring closing is conducted under the action of sodium hydroxide or sodium carbonate, so that the hydroxyethyl (propyl) glycidyl phthalate acrylate is obtained; and the hydroxyethyl (propyl) glycidyl phthalate acrylate is washed with water, and is desolventized and desalted, so that a relatively pure compound containing vinyl and epoxy groups can be obtained. The obtained product is high in purity and good in stability.

Description

technical field [0001] The invention belongs to the field of organic synthesis, in particular to a glycidyl acrylate hydroxyethyl phthalate and a preparation method thereof. Background technique [0002] At present, resin is widely used in various fields because of its excellent performance, but with the development of economy and technology, various industries put forward higher requirements for the performance of resin. Radiation curing is a process in which chemical formulations (coatings, inks and adhesives) are converted from liquid to solid by irradiation with energy. At present, epoxy resin is widely used in radiation curing. The excellent physical, mechanical and electrical insulation properties of epoxy resin, the bonding performance with various materials, and the flexibility of its use process are not available in other thermosetting plastics. . Therefore, it can be made into coatings, composite materials, casting materials, adhesives, molding materials and inje...

Claims

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Application Information

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IPC IPC(8): C07D303/16C07D301/26
CPCC07D303/16C07D301/26
Inventor 吴志飞陈明贵
Owner JIANGSU HIMONIA TECH