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Preparation method and application of vitamin E molecularly imprinted polymer

A molecular imprinting and polymer technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as the composition and structure of molecularly imprinted polymers that are not specifically disclosed, and achieve low preparation and use costs, high efficiency, and strong identification. The effect of capacity and adsorption

Inactive Publication Date: 2019-01-29
WUHAN INSTITUTE OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN107417658A discloses a method for efficiently purifying tocotrienols, which uses a molecularly imprinted polymer with specific recognition to separate and purify tocotrienols, but the method does not specifically disclose the molecularly imprinted polymer. composition and structure
The inventor team of the present application has made a molecularly imprinted polymer specially used for the separation and purification of vitamin E through a one-step reaction of precipitation polymerization through a lot of exploration and practice. There are no reports of similar compounds and synthetic methods.

Method used

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  • Preparation method and application of vitamin E molecularly imprinted polymer
  • Preparation method and application of vitamin E molecularly imprinted polymer
  • Preparation method and application of vitamin E molecularly imprinted polymer

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Vitamin E and acrylamide were added to the acetone solution, wherein the amount of vitamin E was 0.11 g, the amount of acrylamide was 0.088 g, and the amount of acetone was 20 mL. After the above substances were mixed, they were sonicated for 20 minutes, and then transferred to a refrigerator at a constant temperature of 8°C for 10 hours.

[0025] Get ethylene glycol dimethacrylate and azobisisobutyronitrile and join in the above-mentioned solution, wherein the consumption of ethylene glycol dimethacrylate is 0.96g, and the consumption of azobisisobutyronitrile is 0.03g, react The total volume concentration of the polymerization reaction monomer and the crosslinking agent in the liquid is 5%. After the addition was completed, the mixture was sonicated for 10 minutes, then the mixed solution was poured into the reaction device, and the temperature was raised to 68° C. for 20 hours under the condition of cutting off the air to obtain the molecularly imprinted polymer semi...

Embodiment 2

[0030] Vitamin E and acrylamide were added to the acetone solution, wherein the amount of vitamin E was 0.11 g, the amount of acrylamide was 0.088 g, and the amount of acetone was 30 mL. After the above substances were mixed, the mixture was sonicated for 10 minutes, and then transferred to a refrigerator at 10° C. for 12 hours.

[0031] Get ethylene glycol dimethacrylate and azobisisobutyronitrile and join in the above-mentioned solution, wherein the consumption of ethylene glycol dimethacrylate is 0.96g, and the consumption of azobisisobutyronitrile is 0.01g, react The total volume concentration of the polymerization reaction monomer and the crosslinking agent in the liquid is 3.5%. After the addition was completed, the mixture was sonicated for 10 minutes, then the mixed solution was poured into the reaction device, and the temperature was raised to 70° C. for 22 hours under the condition of cutting off the air to obtain a molecularly imprinted polymer semi-finished product...

Embodiment 3

[0035] Vitamin E and acrylamide were added to the acetone solution, wherein the amount of vitamin E was 0.11 g, the amount of acrylamide was 0.07 g, and the amount of acetone was 40 mL. After the above substances were mixed, the mixture was sonicated for 30 minutes, and then transferred to a refrigerator at 6° C. for 10 hours.

[0036] Get ethylene glycol dimethacrylate and azobisisobutyronitrile and join in the above-mentioned solution, wherein the consumption of ethylene glycol dimethacrylate is 1.25g, and the consumption of azobisisobutyronitrile is 0.02g, react The total volume concentration of the polymerization reaction monomer and the crosslinking agent in the liquid is 3%. After the addition was completed, the mixture was sonicated for 10 minutes, then the mixed solution was poured into the reaction device, and the temperature was raised to 65° C. for 20 hours under the condition of isolation from air to obtain a semi-finished product of molecularly imprinted polymer. ...

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Abstract

The invention relates to a preparation method and application of vitamin E molecularly imprinted polymer. According to the preparation method, acetone is adopted as an organic solvent, vitamin E, acrylamide, ethylene glycol dimethacrylate and azodiisobutyronitrile are adopted as raw materials, and the molecularly imprinted polymer is obtained through a reaction at 60-70 DEG C under the conditionsof oxygen isolation. It is shown through experiment that the polymer has specific adsorption properties for vitamin E, and vitamin E can be identified precisely and separated from a complex system, and the successful synthesis of the molecularly imprinted polymer is of great significance to the industrial separation and purification of vitamin E.

Description

technical field [0001] The invention relates to the technical field of functional polymer materials, in particular to a preparation method and application of a vitamin E molecularly imprinted polymer. Background technique [0002] Vitamin E (also known as tocopherol) is a substance necessary for normal muscle metabolism and maintaining the integrity of the central nervous system and vascular system. Vitamin E can promote the secretion of sex hormones, prevent miscarriage, improve human fertility, and at the same time resist free radical oxidation, and can be used in skin care products to prevent aging, so the market value potential of vitamin E is huge. At present, the extraction of natural vitamin E from deodorized distillates often requires the comprehensive use of extraction, esterification, transesterification, saponification and other processes. In this way, not only the solvent cost is high, the energy consumption of resources is large, but also the purity of vitamin E...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/56C08F220/20C08F2/14C08J9/28B01J20/26B01J20/30
CPCB01J20/268C08F2/14C08F220/56C08J9/28C08J2333/26C08F220/20
Inventor 张佑红印建国卢轶男朱胤霈
Owner WUHAN INSTITUTE OF TECHNOLOGY
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