Asymmetric succinate type gemini surfactant and preparation method thereof

A surfactant and succinate technology, which is applied in the preparation of sulfonate, chemical instruments and methods, organic chemistry, etc., can solve the problems of high production cost, application and marketing restrictions, and difficulty in large-scale industrial production. Achieve the effects of low price, wide range of sources and simple preparation process

Inactive Publication Date: 2017-03-08
SHAANXI UNIV OF SCI & TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesis route of asymmetric Gemini surfactants is relatively complicated, and the high production cost also restricts its application and market promotion to a certain extent, making it difficult to realize large-scale industrial production.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Asymmetric succinate type gemini surfactant and preparation method thereof
  • Asymmetric succinate type gemini surfactant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Take 32.7 parts by mass of fatty acid monoethanolamide and 25.74 parts by mass of dodecyl butenedioic acid monoester, add them to a three-necked flask, add 1.5 parts by mass of boric acid as a catalyst, heat up to 90°C, and react for 6.5 hours;

[0027] Cool down to 85°C, add sodium bisulfite, and react for 2 hours;

[0028] Add chloroacetic acid, react for 3 hours, and adjust the pH to 7 during the reaction;

[0029] Washing with absolute ethanol, filtering and drying to obtain an asymmetric succinate-type Gemini surfactant.

Embodiment 2

[0031] Take 28.5 parts by mass of fatty acid monoethanolamide and 28.6 parts by mass of dodecyl butenedioic acid monoester, add them to a three-necked flask, add 1 part by mass of boric acid as a catalyst, heat up to 105°C, and react for 5.5 hours;

[0032] Cool down to 85°C, add sodium bisulfite, and react for 2.5 hours;

[0033] Add chloroacetic acid, react for 2.5 hours, and adjust the pH to 7 during the reaction;

[0034] Washing with absolute ethanol, filtering and drying to obtain an asymmetric succinate-type Gemini surfactant.

Embodiment 3

[0036] Take 32.7 parts by mass of fatty acid monoethanolamide and 25.74 parts by mass of dodecyl butenedioic acid monoester, add them to a three-necked flask, add 1.5 parts by mass of boric acid as a catalyst, heat up to 90°C, and react for 6.5 hours;

[0037] Cool down to 85°C, add sodium bisulfite, and react for 2 hours;

[0038] Add chloroacetic acid, react for 3 hours, and adjust the pH to 7 during the reaction;

[0039] Washing with absolute ethanol, filtering and drying to obtain an asymmetric succinate-type Gemini surfactant.

[0040] Unsymmetrical succinate type Gemini surfactant (C 12 -C 12 ) The first step reaction infrared NMR data is as follows:

[0041] 3444.24 cm -1 is the absorption peak of amide hydrogen; 2854.25cm -1 and 2924.39cm -1 The absorption peak at -CH 3 and -CH 2 The stretching vibration absorption peak of -; 1593 cm -1 is the amide absorption peak; 2667.83 cm -1 with 1732.63 cm -1 Ester carbonyl characteristic absorption peak appears; 1281...

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

PUM

No PUM Login to view more

Abstract

The invention relates to a preparation method of an asymmetric succinate type Gemini surfactant. Gemini surfactant contains two hydrophilic groups and two hydrophobic chains. Compared with traditional single-head (hydrophilic) and single-tail (hydrophobic) surfactants, it shows better performance and is a new type of high-efficiency of surfactants. The present invention takes fatty acid monoethanolamide and dodecyl butenedioic acid monoester, adds boric acid as a catalyst to heat up the reaction; lowers the temperature and adds sodium bisulfite to react; adds chloroacetic acid to react; washes, filters and dries to obtain the asymmetric succinate type Gemini surfactant. The present invention is based on cheap and easy-to-obtain natural fatty acids as raw materials, and the prepared surfactant not only has the excellent performance of traditional Gemini surfactants, but also has good market applicability due to the characteristics of simple preparation process and cheap raw materials.

Description

technical field [0001] The invention relates to a preparation method of a surfactant, in particular to an asymmetric succinate type Gemini surfactant and a preparation method thereof. Background technique [0002] Gemini surfactant contains two hydrophilic groups and two hydrophobic chains. Compared with traditional single-head (hydrophilic) and single-tail (hydrophobic) surfactants, it shows better performance and is a new type of high-efficiency of surfactants. Compared with traditional surfactants, Gemini surfactants show more excellent performance: it is easier to adsorb on the gas / liquid surface, thereby reducing the surface tension of aqueous solution more effectively; it is easier to aggregate to form micelles; Gemini surfactants reduce the concentration of aqueous solutions The tendency of surface tension is much greater than the tendency of aggregation to form micelles, and the efficiency of reducing the surface tension of aqueous solution is quite prominent; it ha...

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

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/22B01F17/28B01F17/10C07C303/32C07C309/17C09K23/22C09K23/10C09K23/28
Inventor 吕斌王泓棣马建中高建静
Owner SHAANXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap