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Dimeric surfactant wormlike micelle and preparation method thereof

The technology of worm-like micelle and surfactant is applied in the field of dimerized surfactant worm-like micelle and its preparation, which can solve the problems of complex molecular structure, unobtainable raw materials, long synthesis route and the like, and achieves simple preparation method, Excellent viscoelastic properties at low cost

Inactive Publication Date: 2018-11-20
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The current worm-like micelles are obtained from high-concentration gemini surfactants, organic salts, metal ions, etc., through intermolecular forces, van der Waals forces, and hydrogen bonds. For reasons such as long, they all have defects such as high cost and low yield. Therefore, it is urgent to find a new type of surfactant worm-like micelles with strong aggregation ability, strong viscoelasticity, low cost, simple preparation method and high yield to make up for it. above defects

Method used

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  • Dimeric surfactant wormlike micelle and preparation method thereof
  • Dimeric surfactant wormlike micelle and preparation method thereof
  • Dimeric surfactant wormlike micelle and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0060] Embodiment 1: the preparation of Bola 2Ph

[0061] Add benzyl bromide (85g, 0.5mol), tetramethylethylenediamine (29g, 0.25mol) and ethanol (300g) into a 500ml single-necked flask, and react at 80°C for 10 hours. After the reaction, remove it by suction filtration Ethanol, then wash the white filter cake with acetone, and finally recrystallize the white solid three times with ethanol to obtain the final pure product N1, N2 dibenzyl N1, N1, N2, N2 tetramethylethane-1,2-diaminium .

[0062] The yield detection result is: the yield is 78%.

Embodiment 2

[0063] Embodiment 2: Preparation of Bola 4Ph

[0064] Put N,N-dimethylbenzylamine (67.5g, 0.5mol), 1,4-dibromobutane (68.0g, 0.25mol) and ethanol (300g) into a 500ml one-port bottle, Stir for 10 hours at °C. After sufficient reaction, the solvent was removed by rotary evaporation to obtain N1, N4-dibenzyl-N1, N1, N4, N4-tetramethylbutane-1,4-diammonium.

[0065] The yield detection result is: the yield is 78%.

Embodiment 3

[0066] Embodiment 3: Preparation of Bola 6Ph

[0067] Put N,N-dimethylbenzylamine (67.5g, 0.5mol), 1,6-dibromohexane (69.0g, 0.25mol) and ethanol (300g) into a 500ml one-port bottle, Stir for 10 hours at °C. After sufficient reaction, the solvent was removed by rotary evaporation to obtain N1, N6-dibenzyl-N1, N1, N6, N6-tetramethylhexane-1,6-diammonium.

[0068] The yield detection result is: the yield is 78%.

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Abstract

The invention discloses a dimeric surfactant wormlike micelle and a preparation method thereof, and belongs to the technical field of chemical synthesis. The method comprises the following steps: mixing benzyl bromide and tetramethylethylenediamine or N, N-dimethyl benzylamine and 1, 4-dibromobutane or N, N-dimethyl benzylamine and 1, 6-dibromohexane or N, N-dimethyl benzylamine and 1, 8-octamethylene bromide based on certain ratio; performing substitution reaction to obtain Bola n Ph; mixing sodium oleate and obtained Bola n pH based on certain ratio; and reacting to obtain the dimeric surfactant wormlike micelle. The prepared dimeric surfactant wormlike micelle has the advantages of being high in gathering capacity, outstanding in viscoplastic property, low in cost, and simple in preparation method and has extremely good application prospect in environmental protection, oilfield exploitation textile printing and dyeing, industrial cleaning and chemicals preparation.

Description

technical field [0001] The invention relates to a dimeric surfactant worm-like micelle and a preparation method thereof, belonging to the technical field of chemical synthesis. Background technique [0002] Surfactants are a class of substances that can significantly reduce the surface tension of a solution and form ordered molecular aggregates in the bulk phase when added in a very small amount, consisting of hydrophobic groups and hydrophilic groups. It has amphiphilic properties, can not only be adsorbed on the interface, but also can form orderly aggregates in a solution of a certain concentration. Therefore, it has the properties of wetting, emulsifying, solubilizing, washing, and dispersing. [0003] Surfactants can self-organize in solution to form ordered aggregates of various molecules, such as spherical micelles, rod micelles, worm micelles, vesicles, and liquid crystals. Among them, the worm micelles will entangle with each other as the concentration increases, t...

Claims

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Application Information

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IPC IPC(8): B01F17/18B01F17/08C07C209/12C07C211/63C07C51/41C07C57/12C09K23/18C09K23/08
CPCC07C51/412C07C209/12C09K23/00
Inventor 裴晓梅李朝旺宋冰蕾崔正刚
Owner JIANGNAN UNIV
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