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Preparation method of esterified material by utilizing polymerized rosin and methacrylic acid oxhydryl ester

A technology of hydroxy methacrylate and polymerized rosin, which is applied in the field of preparing esterified products by using polymerized rosin and hydroxy methacrylate to achieve the effects of enhancing the deep processing capacity of rosin, cheap and easy-to-obtain raw materials, and simple synthesis process

Inactive Publication Date: 2012-09-12
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And utilize the carboxyl of polymerized rosin and methacrylic acid hydroxy ester generation esterification reaction to prepare the method for esterified thing and there is no report at present

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] (1) Heat and melt 100 grams of polymerized rosin, then add 1 gram of zinc oxide and 2.5 grams of hydroquinone, and dropwise add 48 grams of hydroxymethacrylate, and control the temperature of the system at 200 ° C during the dropwise addition. Raise the temperature to 220°C for 4 hours;

[0010] (2) Cool the product obtained in step (1) to 80°C and add 80 milliliters of gasoline to dissolve the esterified product, filter to remove zinc oxide, hydroquinone and unreacted polymerized rosin, remove gasoline by distillation under reduced pressure, and use 60°C warm water Wash to remove unreacted hydroxy methacrylate, and dry in vacuum to obtain a wine-red transparent esterified product.

Embodiment 2

[0012] (1) Heat and melt 100 grams of polymerized rosin, then add 0.1 gram of zinc oxide and 0.5 gram of hydroquinone, and dropwise add 10 grams of hydroxy methacrylate. When dropping, control the temperature of the system at 210 ° C, add dropwise After completion, the temperature was raised to 220° C. for 5 hours;

[0013] (2) Cool the product obtained in step (1) to 80°C and add 50 ml of gasoline to dissolve the esterified product, filter to remove zinc oxide, hydroquinone and unreacted polymerized rosin, distill the gasoline under reduced pressure, and use 50°C warm water Wash to remove unreacted hydroxy methacrylate, and dry in vacuum to obtain a wine-red transparent esterified product.

Embodiment 3

[0015] (1) 100 grams of polymerized rosin are heated and melted, then 1.2 grams of zinc oxide and 1.5 grams of hydroquinone are added, and 25 grams of hydroxymethacrylate are added dropwise. The temperature of the system is controlled at 210 ° C during the dropwise addition. Afterwards, the temperature was raised to 230° C. for 6 hours;

[0016] (2) Cool the product obtained in step (1) to 80°C and add 70 ml of gasoline to dissolve the esterified product, filter to remove zinc oxide, hydroquinone and unreacted polymerized rosin, distill the gasoline under reduced pressure, and use 60°C warm water Wash to remove unreacted hydroxy methacrylate, and dry in vacuum to obtain a wine-red transparent esterified product.

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PUM

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Abstract

The invention discloses a preparation method of esterified material by utilizing polymerized rosin and methacrylic acid hydroxyl ester. The method comprises the following steps of: fusing 10 parts by weight of polymerized rosin in a heating way, adding 0.1-2 parts by weight of catalyst and 0.5-2.5 parts by weight of polymerization inhibitor, dropwise adding 10-50 parts by weight of methacrylic acid hydroxyl ester, controlling the system temperature at 200-210 DEG C in the process of dropwise adding, and heating to 220-230 DEG C after dropwise adding so as to react for 3-8 hours; and cooling to 80 DEG C, adding 50-100 ml of gasoline so as to dissolve an esterified material, filtering, distilling under reduced pressure, washing with warm water, and drying under vacuum, so as to obtain the wine red and transparent esterified material, wherein the catalyst is zinc oxide, and the polymerization inhibitor is hydroquinone. The preparation method has the advantages that the raw materials are low in price and easy to obtain, the synthetic process is simple, the preparation method is environmentally-friendly and non-toxic, the prepared esterified material is good in oxidation resistance and thermal stability, and the like, thereby being widely applicable to the fields of coating materials, adhesives, ink, and the like.

Description

technical field [0001] The technical field of the invention belongs to the field of chemical synthesis and chemical production, and in particular relates to a method for preparing esterified products by using polymerized rosin and hydroxy methacrylate. Background technique [0002] Rosin is an abundant renewable natural chemical raw material, but its application is limited due to its poor thermal stability, poor oxidation resistance, brittleness, and easy crystallization. Polymerized rosin is a derivative of rosin, which is generally prepared in a solvent by catalytic polymerization process. Commonly used solvents include gasoline, benzene, petroleum ether, toluene, acetic acid, organic halides, etc. Commonly used catalysts are H 2 SO 4 , ZnCl 2 , AlCl 3 , BF 3 wait. In rosin, only abietic acid in abietic acid type resin acids can be directly polymerized, while neoabietic acid, palustric acid, and L-pimaric acid must first be converted to abietic acid before polymerizat...

Claims

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Application Information

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IPC IPC(8): C09F1/04
Inventor 张发爱武安福余彩莉
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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