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Soybean oil-based resin and preparation method thereof, soybean oil-based resin cured product and preparation method thereof

A technology for soybean oil-based resin and cured product, which can be used in the preparation of carboxylate, chemical instruments and methods, preparation of organic compounds, etc., and can solve the problems such as the thermal stability and mechanical properties of the cured resin need to be improved.

Active Publication Date: 2019-12-13
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the biological monomers used to prepare thermosetting resins in the prior art are aliphatic or cycloaliphatic compounds, and the thermal stability and mechanical properties of the final resin cured product need to be improved

Method used

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  • Soybean oil-based resin and preparation method thereof, soybean oil-based resin cured product and preparation method thereof
  • Soybean oil-based resin and preparation method thereof, soybean oil-based resin cured product and preparation method thereof
  • Soybean oil-based resin and preparation method thereof, soybean oil-based resin cured product and preparation method thereof

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preparation example Construction

[0027] The invention provides a kind of preparation method of soybean oil-based resin, comprises the following steps:

[0028] Mixing methacrylic anhydride, vanillyl alcohol and a catalyst to carry out a first esterification reaction to obtain a vanillyl methacrylate feed liquid;

[0029] Mixing the vanillyl methacrylate feed solution with epoxy soybean oil acrylate, and performing a second esterification reaction to obtain soybean oil-based resin;

[0030] The molar ratio of the methacrylic anhydride, vanillyl alcohol and epoxy soybean oil acrylate is (6-8):2:1.

[0031] The invention mixes methacrylic anhydride, vanillyl alcohol and a catalyst to carry out a first esterification reaction to obtain a vanillyl methacrylate feed liquid. The present invention has no special limitation on the source of the vanillyl alcohol, and commercially available products well known to those skilled in the art can be used; in the embodiment of the present invention, the vanillyl alcohol is s...

Embodiment 1

[0052] Add 15.42g of vanillyl alcohol into a three-necked flask, add 46.26g of methacrylic anhydride and 0.61g of catalyst 4-dimethylaminopyridine, and react for 18h under the conditions of magnetic stirring and heating in a silicone oil bath at 45°C to obtain a light yellow, clear and transparent liquid, namely Vanillyl methacrylate liquid;

[0053] The vanillyl methacrylate stock solution and 58.8g epoxy soybean oil acrylate (the theoretical mass ratio of vanillyl methacrylate in the vanillyl methacrylate stock solution is 2:1 , the theoretical molar ratio of epoxy soybean oil acrylate and the remaining amount of methacrylic anhydride in the vanillyl methacrylate feed solution is 0.5:1) mixed, and the temperature was raised to 70°C, and the magnetic stirring reaction was continued for 6h; the reaction After the end, cool down naturally to room temperature, and use 1mol / L KOH aqueous solution, 0.5mol / L KOH aqueous solution and saturated NaHCO 3 Washing with aqueous solution,...

Embodiment 2

[0055] Add 15.42g of vanillyl alcohol into a three-necked flask, add 53.97g of methacrylic anhydride and 0.68g of catalyst 4-dimethylaminopyridine, and react for 15h under the conditions of magnetic stirring and heating in a silicone oil bath at 45°C to obtain a light yellow clear liquid, namely Vanillyl methacrylate liquid;

[0056] The vanillyl methacrylate stock solution and 58.8g epoxy soybean oil acrylate (the theoretical mass ratio of vanillyl methacrylate in the vanillyl methacrylate stock solution is 2:1 , the theoretical molar ratio of epoxy soybean oil acrylate and the remaining amount of methacrylic anhydride in the vanillyl methacrylate feed solution is 1:3) mixed, and the temperature was raised to 70°C, and the magnetic stirring reaction was continued for 6h; the reaction After the end, cool down naturally to room temperature, and use 1mol / L KOH aqueous solution, 0.5mol / L KOH aqueous solution and saturated NaHCO 3 Washing with aqueous solution, and then washing w...

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Abstract

The invention provides a soybean oil-based resin and a preparation method thereof, a soybean oil-based resin cured product and a preparation method thereof, belonging to the technical field of functional materials. In the invention, vanillol is taken as a raw material to undergo a first esterification reaction with methacrylic anhydride, and generated vanillol methacrylate retains the rigid benzene ring structure of the vanillol, has high double bond content and low viscosity, is an ideal reactive diluent, and can replace styrene as a diluent for subsequent second esterification reaction; meanwhile, the remaining methacrylic anhydride after the first esterification reaction and epoxidized soybean oil acrylate undergo a second esterification reaction to realize the modification of the epoxidized soybean oil acrylate, and the preparation method is beneficial to ensuring that the obtained soybean oil-based resin is cured to obtain the soybean oil-based resin cured product with high crosslinking degree, excellent thermal stability and excellent mechanical properties.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a soybean oil-based resin and a preparation method thereof, a cured soybean oil-based resin and a preparation method thereof. Background technique [0002] At present, the raw materials for the production of thermosetting resins mainly include bisphenol A and styrene. However, bisphenol A is classified as a carcinogenic, mutagenic and reproductive toxic compound, and styrene has been identified as a hazardous air pollutant and a volatile organic compound; and both bisphenol A and styrene are obtained from petroleum, and with petroleum Resource consumption and environmental problems have become prominent, and finding alternatives has become an urgent problem to be solved. [0003] Nature produces about 170 billion tons of biomass every year, and the use of renewable resources such as plants to replace petroleum to prepare thermosetting resins has attracted widespread...

Claims

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Application Information

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IPC IPC(8): C07C67/08C07C69/54C07D301/00C07D303/42C08F222/20
CPCC07C67/08C07C69/54C07D301/00C07D303/42C08F222/10
Inventor 陈军营刘华章文吕丽娜陈童庆刘坐镇钱建华吕晓平
Owner EAST CHINA UNIV OF SCI & TECH
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