Colophony-based sulphonate type gemini surfactant and method for preparing the same

A rosin-based sulfonate, gemini surface technology, applied in chemical instruments and methods, dissolution, chemical/physical processes, etc., can solve the problems of difficult biodegradation and high product price, achieve cheap raw materials, and reduce oil/water interfacial tension. , the effect of high surface activity

Inactive Publication Date: 2009-08-12
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

[0005] In order to solve the shortcomings of high product price and difficult biodegradation in the prior art, the invention provides a kind of rosin-based sulfonate type gemini surfactant and its preparation method

Method used

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  • Colophony-based sulphonate type gemini surfactant and method for preparing the same
  • Colophony-based sulphonate type gemini surfactant and method for preparing the same
  • Colophony-based sulphonate type gemini surfactant and method for preparing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of rosin base sulfonate type gemini surfactant, its general structural formula is as follows:

[0040]

[0041] In the formula, R is a rosin-based tricyclic diterpene structure, an integer in 1≤n≤5, for example, n can be selected as 1, 2, 3, 4, 5.

[0042] In this embodiment, R is one of the following substituents:

[0043] Tricyclic diterpene group of dehydroabietylamine or tricyclic diterpene groups of disproportionated abietamines.

Embodiment 2

[0045] A kind of preparation method of rosin-based sulfonate type gemini surfactant, first prepare N, N'-didehydroabietyl α, ω-diamine with dehydroabietyl amine or disproportionated abietyl amine, then use N, N' -Didehydroabietyl α, ω-diamine and 2-bromoethylsulfonate sodium are obtained through sulfonation reaction to obtain abietyl sulfonate type gemini surfactant.

[0046] In this example, the synthesis of N, N'-didehydroabietyl α, ω-diamine comprises the following steps: using dibromoalkane as a nucleophile and dehydroabietylamine in anhydrous sodium carbonate as an acid-binding agent N,N'-didehydroabietyl α,ω-diamine is obtained by nucleophilic addition reaction in toluene solution, wherein the molar ratio of dehydroabietylamine, dibromoalkane and anhydrous sodium carbonate is 2.3:1 :1.

[0047] The N, N'-didehydroabietyl α, ω-diamine and sodium 2-bromoethylsulfonate through the sulfonation reaction conditions are: N, N'-didehydroabietyl α, ω-diamine The molar ratio of ...

Embodiment 3

[0049] A kind of preparation method of rosin base sulfonate type gemini surfactant, comprises the following steps:

[0050] The first step: the synthesis of N, N'-didehydroabietyl 1,4-diamine:

[0051] In a dropping funnel, anhydrous CaCl 2 Add 1,4-dibromobutane and acid-binding agent anhydrous sodium carbonate into the four-necked flask of the drying tube and the reflux condenser, and add the toluene solution of dehydroabietylamine dropwise at a stirring speed of 1500-3000r / min, and dehydrogenate The molar ratio of abietylamine, 1,4-dibromobutane and anhydrous sodium carbonate is 2.4:1.1:1, and the amount of solvent toluene is 100-250mL. Reflux and stir at 110°C for 20 hours, then cool to room temperature and filter, wash the filter residue with methanol until loose, evaporate the solvent to obtain a dark yellow waxy sticky solid, dissolve it in chloroform, wash the solution three times with water, dry the oil phase and evaporate the solvent, Purify with ether, filter and d...

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Abstract

The invention discloses a rosinyl sulphonate gemini surfactant, the general structure thereof is shown in the right formula, R represents rosinyl tricyclic diterpene group and is an integer less than or equal to 1 and greater than or equal to 5. The preparation method is as follows: nucleophilic reaction is carried out on dehydro-abietylamine or disproportionated rosin and dibromoalkane to obtain an active intermediate N, N'-didehydro-abietylamine base alpha, omega-diamine which is then used to react with 2-bromoethyl sodium sulfonate to obtain the rosinyl sulphonate gemini surfactant. The surfactant prepared by the invention has better water solubility, very high surface activity and ability of reducing oil / water interfacial tension, excellent solubilization, salt-resistance, anti-deposition and wetting properties for oil, cheap and accessible raw materials and low toxicity, and is biodegradable.

Description

technical field [0001] The invention relates to a sulfonate-type gemini surfactant and its preparation method and use, in particular to a rosin-based sulfonate-type gemini surfactant and its preparation method and use. Background technique [0002] Rosin is a kind of rich and cheap renewable forest resource, it contains resin acid with alkyl hydrophenanthrene structure, its molecular structure has huge, non-polar tricyclic structure with good hydrophobicity, and the polar carboxyl part is also It is hydrophilic, so rosin is a typical amphiphilic molecule. After modification by different reagents, anionic, cationic and nonionic surfactants can be obtained, which has important application value in the national economy. For example, sodium rosinate, as an anionic surfactant, has good foaming effect and emulsifying ability, and is mainly used in soap foam booster, wetting agent, preservative, emulsifier of synthetic rubber and flotation agent of some substances. The rosin sugar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/16C09K23/16
Inventor 宋湛谦贾卫红饶小平商士斌
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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