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Nonionic reverse micelle system and method for modifying polar material by using same

A technology of polar substances and reverse micelles, which is applied in the field of non-ionic reverse micelles and their modified polar substances, achieving the effect of simple application, simple method and convenient operation

Inactive Publication Date: 2013-07-17
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reverse micellar technology at home and abroad is mainly used in the separation of polar substances in non-polar systems, the immobilization of enzymes and the preparation of nanoparticles. Among them, the research on the separation of polar substances in non-polar systems focuses on the biological Extraction and separation of active substances (proteins, amino acids, antibiotics, enzymes), there is no report of its direct application to the modification of polar substances

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of nonionic reverse micellar system:

[0034] The non-ionic surfactant fatty alcohol polyoxyethylene ether AEO-9, the co-surfactant n-propanol and the organic solvent methylene chloride were prepared as a working solution at 25°C; then the working solution was ultrasonically treated with an ultrasonic power of 600W , the treatment time is 30min, and a stable reverse micellar system is obtained; the reverse micellar system is stabilized as a clear and transparent solution, centrifuged at a high speed by a centrifuge at a speed of 5000r / min for 30min, and the solution is not turbid, which is a stable system. Wherein, the concentration of fatty alcohol polyoxyethylene ether in the reverse micelle system is 0.01 g / mL, and the mass percentage of n-propanol and fatty alcohol polyoxyethylene ether is 12.5%.

Embodiment 2

[0036]Preparation of nonionic reverse micellar system:

[0037] The non-ionic surfactant alkylphenol polyoxyethylene ether OP-7, the co-surfactant n-butanol and the organic solvent chloroform were formulated at 25°C to make a working solution; then the working solution was ultrasonically treated, and the ultrasonic power 1000W, the treatment time is 5min, and a stable reverse micelle system is obtained; the reverse micelle system is stabilized as a clear and transparent solution, centrifuged at a high speed by a centrifuge at a speed of 8000r / min for 20min, the solution is not turbid, and it is a stable system. Wherein, the concentration of alkylphenol polyoxyethylene ether OP-7 in the reverse micelle system is 0.05g / mL, and the mass percentage of n-butanol and alkylphenol polyoxyethylene ether OP-7 is 150%.

Embodiment 3

[0039] Preparation of nonionic reverse micellar system:

[0040] The non-ionic surfactant fatty alcohol polyoxyethylene ether AEO-11, the co-surfactant n-octanol and the mixed organic solvent toluene and n-hexane are prepared at 25°C as a working solution, and the mass percentage of toluene and n-hexane is 200%; Then, the working solution was ultrasonically treated with an ultrasonic power of 800W and a treatment time of 25 minutes to obtain a stable reverse micelle system; the reverse micelle system was stabilized as a clear and transparent solution, which was centrifuged at a high speed by a centrifuge at a speed of 8000r / min. After 20 minutes, the solution is not turbid, which is a stable system. Wherein, the concentration of fatty alcohol polyoxyethylene ether AEO-11 in the reverse micelle system is 0.12 g / mL, and the mass percentage of n-octanol and fatty alcohol polyoxyethylene ether AEO-11 is 50%.

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Abstract

The invention relates to a nonionic reverse micelle system and a method for modifying a polar material by using the same. The polar material is wrapped in a polar core of a reverse micelle, and the exterior of the polar core is a continuous organic phase. The reverse micelle system provided by the invention is prepared by subjecting a nonionic surfactant, a cosurfactant and an organic solvent to ultrasonic treatment, wherein the organic solvent is a slightly polar organic solvent or a composition of the slightly polar organic solvent and a non-polar organic solvent. According to the invention, preparation raw materials are frequently used industrial raw materials and are easily available; the obtained reverse micelle system is stable, has great solubilized water quantity and a controllable particle size, can well disperse the polar material and has good stability. The reverse micelle system has a wide application scope, is applicable to polar water-soluble substances like nanometer microcrystalline cellulose, enzyme, organic acids, protein and dye and can be used for polar water-soluble substances in different states, e.g., a liquid, a nanometer particle, an emulsion and a suspension.

Description

technical field [0001] The invention relates to a nonionic reverse micelle system and a method for modifying polar substances thereof, in particular to a method for modifying polar substances by using a nonionic surfactant to prepare a reverse micelle system through a weak polar solvent. Polar reverse micellar systems and methods for modifying polar water-soluble substances. Background technique [0002] Reverse micelles, also known as reverse micelles, are aqueous polymers formed spontaneously by surfactants dispersed in a continuous organic phase, which is opposite to the normal micellar structure. Organic solvents usually use non-polar organic solvents such as isooctane and cyclohexane, or weakly polar / non-polar mixed organic solvents of chloroform / cyclohexane, and cationic surfactants are used when mixed organic solvents are used. When adopting nonionic surfactant, prior art all is the nonpolar organic solvent that uses. [0003] In the reverse micelles, the hydrophili...

Claims

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Application Information

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IPC IPC(8): B01F3/08B01F11/02B01J13/00B01J19/00C08J3/28C08J3/09C08L1/02C08L89/00
Inventor 阎克路赵群陈怡秀朱青
Owner DONGHUA UNIV
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