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Rosinyl polyoxyethylene amine type gemini surfactant and preparation method thereof

A rosin-based polyoxyethylene amine-type, gemini-surface technology, applied in chemical instruments and methods, foam dispersion/prevention, transportation and packaging, etc., can solve problems such as difficulties in synthetic route design, and achieve easy operation, good surface activity, The effect of simple preparation method

Active Publication Date: 2013-11-27
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difficulty of synthetic route design, at present, the research on rosin-based polyoxyethylene amine type gemini surfactants has not been reported yet.

Method used

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  • Rosinyl polyoxyethylene amine type gemini surfactant and preparation method thereof
  • Rosinyl polyoxyethylene amine type gemini surfactant and preparation method thereof
  • Rosinyl polyoxyethylene amine type gemini surfactant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Synthesis of Brominated Polyethylene Glycol Monomethyl Ether (MPEGBR-1)

[0051] Wash the closed reaction kettle with methanol and dry it, add 3.2g methanol and 0.01g double metal cyanide complex at room temperature, replace water with nitrogen several times at 110°C, then add 62.4g ethylene oxide, at 115 React at ℃ until the pressure in the kettle no longer drops, lower the temperature, and discharge at 80℃.

[0052] Add 20g of the above product, 3.0g of sodium bicarbonate and 40mL of toluene into a 100mL three-necked flask, and stir evenly; dissolve 5.7g of p-toluenesulfonyl chloride in 10mL of toluene and slowly drop it into the three-necked flask at low temperature; react at 40°C After 16 hours, distilled water was added, and the aqueous phase was extracted twice with ethyl acetate. The organic phase was collected, washed with acid, washed with water, dried, and the solvent was removed to obtain a colorless mucus.

[0053]At room temperature, slowly drop the aceton...

Embodiment 2

[0055] Synthesis of Brominated Polyethylene Glycol Monomethyl Ether (MPEGBR-2)

[0056] Wash the closed reaction kettle with methanol and dry it, add 3.2g methanol and 0.1g double metal cyanide complex at room temperature, replace water with nitrogen several times at 110°C, then add 334.9g ethylene oxide, at 120 React at ℃ until the pressure in the kettle no longer drops, lower the temperature, and discharge at 80℃.

[0057] Add 40g of the above product, 3.0g of sodium bicarbonate and 40mL of toluene into a 100mL three-necked flask, and stir evenly; dissolve 5.7g of p-toluenesulfonyl chloride in 10mL of toluene and slowly drop it into the three-necked flask at low temperature; react at 50°C After 14 hours, distilled water was added, and the aqueous phase was extracted twice with ethyl acetate. The organic phase was collected, washed with acid, washed with water, dried, and the solvent was removed to obtain a colorless mucus.

[0058] At room temperature, slowly drop the aceto...

Embodiment 3

[0060] Synthesis of Brominated Polyethylene Glycol Monomethyl Ether (MPEGBR-3)

[0061] Wash the closed reaction kettle with methanol and dry it, add 3.2g methanol and 5.0g double metal cyanide complex at room temperature, replace water with nitrogen several times at 110°C, then add 576.5g ethylene oxide, at 125 React at ℃ until the pressure in the kettle no longer drops, lower the temperature, and discharge at 80℃.

[0062] Add 100g of the above product, 3.0g of sodium bicarbonate and 40mL of toluene into a 100mL three-necked flask, and stir evenly; dissolve 5.7g of p-toluenesulfonyl chloride in 10mL of toluene and slowly drop it into the three-necked flask at low temperature; react at 60°C After 12 hours, distilled water was added, the aqueous phase was extracted twice with ethyl acetate, the organic phase was collected, washed with acid, washed with water, dried, and the solvent was removed to obtain a colorless mucus.

[0063] At room temperature, slowly drop the acetone ...

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Abstract

The invention discloses a rosinyl polyoxyethylene amine type gemini surfactant. The molecular structural formula of the gemini surfactant is shown in the specification, wherein the MPEG is ethylene glycol monomethyl ether. The gemini surfactant provided by the invention has the advantages that the surface activity, foam inhibition capacity and emulsibility are high, the critical micelle concentration (CMC) is 10<-3> to 10<-4> order of magnitudes, the surface tension (Gamma cmc) is 20-30 mN / m, and the foam inhibition capacity and emulsibility are both superior to those of nonylphenol ethoxylates TX-10 which is a commercial surfactant. According to a preparation method of the gemini surfactant, provided by the invention, rosin is taken as raw material, wherein the rosin is an abundant natural renewable resource, is environmental-friendly, and can meet the requirements of raw material greening in preparing the gemini surfactant. The preparation method is simple and easy to operate.

Description

technical field [0001] The invention relates to a rosin-based polyoxyethylene amine type gemini surfactant, a preparation method and application thereof, and belongs to the field of surfactant science and application. Background technique [0002] Gemini surfactants have high surface activity and are research hotspots in the field of surfactants in recent years. They are composed of two or more hydrophilic groups and hydrophobic groups connected by linking groups. Compared with traditional surfactants, the unique structure has better performance, so it has broader application prospects. [0003] As a natural renewable resource, rosin, whose main component is resin acid, has attracted widespread attention due to its abundant resources and low price. [0004] At present, there are also a small number of reports on rosin-based gemini surfactants. The development of rosin-based gemini surfactants not only conforms to the development trend of biomass chemistry today, but also ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/52B01D19/04C08G65/333C08G65/28C08G65/30C09K23/52
Inventor 商士斌王娟王丹宋杰沈明贵齐帆
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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