Bisamide bissulfosalt double surface active agent, and its synthesizing method

A surfactant and gemini surface technology, applied in the field of new gemini surfactants and their synthesis, can solve the problems of late Gemini surfactants and limited types of Gemini surfactants, and achieve a simple synthesis method, excellent surface activity, and easy operation. simple effect
CN1935346AInactive Publication Date: 2007-03-28SOUTHWEST PETROLEUM UNIV
0 Cites 24 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST PETROLEUM UNIV
Publication Date
2007-03-28
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention relates to a kind of bisamide disulfonate double-component surfactant. Said surfactant is ethylene-bis (N-ethyl sulfonate group-alkylamide). Its synthesis method includes the following steps: (1), adding ethylenediamine aqueous solution into a reactor, slowly-drop-adding sodium 2-bromoethyl sulfonate solution, refluxing, stirring, making reaction for 6-8 hr in constant temperature water bath, retaining pH and making it be 8-10, water bath temperature is 50-70deg.C, adding ethyl alcohol, drying separated out solid to obtain sodium N1N1-diethylsulfonate ethylenediamine; and (2), adding the above-mentioned product into a reactor, stirring and adding acyl chloride, at the same time drop-adding triethylamine / acetone solution, retaining pH and making it be about 8, making reaction for 5-8 hr at room temperature, cooling, making precipitation, filtering, washing by using absolute alcohol and drying so as to obtain the invented surfactant.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a novel gemini surfactant and a synthesis method thereof, in particular to a bisamide disulphonate gemini surfactant and a synthesis method thereof. Background technique

[0002] In 1971, Bunton et al on the alkyl-α, ω-bis-dialkyl dimethyl alkyl ammonium bromide [C m h 2m+1 N + (CH 3 ) 2 Br - ] 2 (CH 2 ) 5 Recorded as (m-x-m, 2Br - ) surface properties and critical micelle concentration were studied, and the properties of gemini surfactants with hydrophilic, hydrophobic, flexible and rigid linking groups were investigated. These surfactants are called "biquaternary ammonium salts" "Gemini surfactants", "dimeric surfactants" etc. (C.A.Bunton, L.Robinson.Catalysis of nucleophilc substitutions by micelles of dietic detergent[J]F.J.Org.Chem, 1971.(36):2346-2352). In 1974, Deinega et al. synthesized a new group of amphiphilic molecules. The molecular structure is centered on the linking group, connecting two hydrophilic io...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More