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Eugenol surfactant and application thereof

A technology of reaction and compound, applied in the field of eugenol surfactant and its application, can solve the problems of poor biodegradability and carcinogenicity of degradation products, and achieve the effects of good water solubility, wide application prospect and simple synthetic route

Active Publication Date: 2020-01-24
上海帅蛙生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the enhancement of people's awareness of environmental protection, the use of a large number of surfactants derived from petrochemicals has aroused people's concerns. Such surfactants have problems such as poor biodegradability and potential carcinogenicity of degradation products.

Method used

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  • Eugenol surfactant and application thereof
  • Eugenol surfactant and application thereof
  • Eugenol surfactant and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: Synthesis of eugenol surfactant 10-(4-allyl-2-methoxyphenoxy)sodium caprate.

[0032] Under nitrogen protection, 20 g of anhydrous potassium carbonate and 100 ml of acetone were added to a three-neck flask equipped with a magnetic stirrer, stirred for half an hour, and then 17 g of eugenol in acetone was added. After heating up to 60°C, add 14g of methyl 10-bromodecanoate in acetone solution, and react at 60°C for 72h. After the reaction, the product was cooled to room temperature, filtered with suction and the filtrate was collected, diluted with petroleum ether, then washed with deionized water, 50 mL saturated aqueous sodium bicarbonate solution and deionized water respectively, and the organic phase was dried with anhydrous magnesium sulfate. The solvent was removed by rotary evaporation to give methyl 10-(4-allyl-2-methoxyphenoxy)decanoate. Add methyl 10-(4-allyl-2-methoxyphenoxy)decanoate, sodium hydroxide, deionized water and absolute ethanol into a o...

Embodiment 2

[0033] Embodiment 2: Aggregation ability and emulsion stability of eugenol surfactant

[0034] Prepare 1.0mmol·L -1 NR methanol solution, use a pipette gun to pipette 20 μL of NR solution into a 25mL columnar sample bottle, and use N 2 Dry the methanol in the bottle, and prepare 8 mL series of eugenol surfactant solutions with different concentrations. Under the constant temperature condition of 25°C, the samples were sonicated for 2 hours, and then shaken for 24 hours, and then the fluorescence spectra of each solution were measured with a CARY Eclipse fluorescence spectrometer. Set the excitation wavelength to 540nm, the scanning range to 550-750nm, both the excitation slit and the emission slit to 5nm, and the scanning speed to 250nm·min -1 . image 3 It is the curve graph of the fluorescence intensity of Nile Red with the concentration of eugenol surfactant aqueous solution, from image 3 It can be seen that the cmc of the surfactant is 3.9mM, showing better aggregatio...

Embodiment 3

[0035] Embodiment 3: Copolymerization of eugenol surfactant and styrene to obtain polystyrene nanospheres

[0036] In a cylindrical glass bottle with a volume of 25mL, weigh 4mmol·L -110ml of the eugenol surfactant solution, pipette 1ml of the oil phase styrene into the surfactant aqueous solution, homogenize and emulsify for 2min with the IKAULTRA-TURRAXT18basic homogenizer, the rotation speed is 11000rpm, and make a polystyrene emulsion; Stir the polystyrene emulsion at room temperature for 30 minutes, then raise the temperature to 80°C and add 20 μL of 0.5‰ potassium persulfate aqueous solution, and react the whole system in a constant temperature water bath at 80°C for 12 hours; after the polymerization reaction is completed, centrifuge the product, It was washed several times with anhydrous ether and deionized water, and dried in vacuum at 318K for 12 hours to obtain polystyrene nanospheres.

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Abstract

The invention discloses an application of a eugenol surfactant, and belongs to the technical field of surfactant science and material preparation. The eugenol surfactant has a simple synthetic route and good water solubility, and has important values for applications of eugenol in the field of surfactants. The eugenol surfactant contains an unsaturated double bond structure, and nano microspheresobtained by copolymerization of the eugenol surfactant with styrene have a core-shell structure, and have particle size distribution of 52.4-167.5nm. The nano microspheres have a wide application prospect in the fields of high and new technologies such as catalysis, electronic information, biology and the like.

Description

technical field [0001] The invention relates to a eugenol surfactant and an application thereof, belonging to the technical field of surfactant science and material preparation. Background technique [0002] Surfactants are substances that can significantly reduce the surface tension of an aqueous solution when added in a small amount. The molecular structure of surfactants contains both hydrophobic groups and hydrophilic groups, which can be adsorbed to gas-liquid, liquid-liquid or solid-liquid interfaces, and can also be aggregated in solution to form assemblies of novel structures. With the development of society and the improvement of science and technology, surfactants are used more frequently and widely in people's daily life and industrial production, and are an important fine chemical. However, with the enhancement of people's awareness of environmental protection, the use of a large number of surfactants derived from petrochemicals has aroused people's concerns. Su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C59/68C07C27/02B01F17/44C08F212/08C08F212/14C10G33/04C09K23/44
CPCC07C59/68C08F212/08C10G33/04C09K23/00
Inventor 宋冰蕾史丽燕杨明珠
Owner 上海帅蛙生物科技有限公司
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