Amino-terminated hyperbranched polyamide oxidation-modified peanut shell and application thereof in separation and detection of sunset yellow in foods

A technology of hyperbranching and oxidative modification of terminal amino groups, which is applied in the field of chemistry to achieve the effects of strong adsorption capacity, environmental protection and good chemical stability

Active Publication Date: 2017-07-21
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is not yet a good method for isolating and detecting sunset yellow from food.

Method used

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  • Amino-terminated hyperbranched polyamide oxidation-modified peanut shell and application thereof in separation and detection of sunset yellow in foods
  • Amino-terminated hyperbranched polyamide oxidation-modified peanut shell and application thereof in separation and detection of sunset yellow in foods
  • Amino-terminated hyperbranched polyamide oxidation-modified peanut shell and application thereof in separation and detection of sunset yellow in foods

Examples

Experimental program
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Effect test

Embodiment 1

[0051] Accurately measure 103.17g of diethylenetriamine into a 500mL three-necked flask, and add dropwise a mixture of 86.09g of methyl acrylate and 100mL of methanol in an ice bath. After continuous stirring for 16 hours, a light yellow liquid was obtained. The product was transferred to an eggplant-shaped flask of a rotary evaporator, evacuated by a circulating water vacuum pump, condensed under reflux, rotated at a high speed, and reacted at a water bath temperature of 60° C. for 1 h. Then transfer to the oil bath, start from 100 °C, increase the oil bath by 20 °C every hour for 3 hours, and get the final product of amino-terminated hyperbranched polyamide HBP-NH 2 , and then add the same mass of deionized water to configure HBPN with a mass fraction of 50%.

[0052] 2. Preparation of peanut shells modified by oxidation of amino-terminated hyperbranched polyamide

[0053] The synthesis route of amino-terminated hyperbranched polyamide oxidatively modified peanut shells is...

Embodiment 2

[0056] The experimental method of amino-terminated hyperbranched polyamide oxidatively modified peanut shells in this embodiment is:

[0057] Accurately weigh 2g of oxidized peanut shell powder, pour it into a 150mL three-necked bottle, then add 100mL of deionized water, and stir at a slow speed for 30 minutes. When the temperature of the water bath was raised to 40°C, accurately add 3.2 mL of amino-terminated hyperbranched polyamide (HBP-NH 2 ), heat preservation reaction 8h. After the obtained product was filtered with 100-mesh nylon gauze, it was alternately washed with deionized water and absolute ethanol until the filtrate was clear. Place in a 60°C vacuum oven to remove moisture and dry until the quality remains unchanged.

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Abstract

The invention provides amino-terminated hyperbranched polyamide oxidation-modified peanut shell and application thereof in separation and detection of sunset yellow in foods. The amino-terminated hyperbranched polyamide oxidation-modified peanut shell can provide great adsorption and separation for sunset yellow, and has good cyclic regenerating performance.

Description

technical field [0001] The invention belongs to the technical field of chemistry, and in particular relates to an oxidation-modified peanut shell of an amino-terminated hyperbranched polyamide and an application thereof. Background technique [0002] Hyperbranched polymers have a "defective core-shell" spatial structure with multiple terminal groups, high chemical reactivity, and are easy to modify. Compared with the corresponding linear polymers, they have special properties and show broad application prospects in many fields . Hyperbranched polymers not only have similar physical and chemical properties to dendritic polymers, but also require milder synthesis conditions than dendritic polymers, do not require multi-step synthesis and purification, and have a simple synthesis process and low cost. Realize " one pot cooking type " synthetic, be helpful for realizing industrialization. Therefore, hyperbranched polymer more and more replaces dendritic macromolecule and become...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G81/00G01N30/00G01N21/33
CPCC08G81/00G01N21/33G01N30/00
Inventor 熊春华吝宝红李松何浩铭
Owner ZHEJIANG GONGSHANG UNIVERSITY
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