Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of bio-based primary amine cationic surfactant and preparation method thereof

A technology based on surfactants and primary amine cations, which is applied in the field of bio-based primary amine cationic surfactants and its preparation, can solve the problems of insufficient variety of primary amine cationic surfactants, limited breadth and depth of research, and high synthesis costs. problem, to achieve the effect of enhancing water delivery and aggregation capacity, reducing difficulty, and increasing reaction yield

Active Publication Date: 2020-03-06
JIANGNAN UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, compared with quaternary ammonium salt surfactants, the types of primary amine cationic surfactants are not rich enough, the breadth and depth of research are limited, and the synthesis cost is relatively high

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
  • A kind of bio-based primary amine cationic surfactant and preparation method thereof
  • A kind of bio-based primary amine cationic surfactant and preparation method thereof
  • A kind of bio-based primary amine cationic surfactant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1: synthetic route of bio-based primary amine cationic surfactant

[0049] Bio-based primary amine cationic surfactant, the structural formula is as follows:

[0050]

[0051] The synthetic route of bio-based primary amine cationic surfactant is as follows:

[0052]

[0053] The preparation method of the novel bio-based primary amine cationic surfactant is characterized in that, the method first takes oleic acid and methanol as the starting raw materials to successively undergo esterification, reduction, and replacement of synthetic oleyl alcohol, oleyl alcohol and 3-hydroxybenzene Formaldehyde undergoes substitution, substitution, reduction, and acidification reactions to obtain the final bio-based primary amine cationic surfactant.

Embodiment 2

[0054] Embodiment 2: the synthesis of methyl oleate

[0055] Centrifuge the centrifuge bottle containing oleic acid at a low temperature of 5°C, and a white solid is precipitated at the bottom. After the solid is filtered off, the liquid can be used for subsequent reactions. Add oleic acid (200g 0.71mol), anhydrous methanol (160g 5mol) and concentrated sulfuric acid (3g) into a 500ml single-necked bottle, and react at 72°C for 4 hours. After the reaction, the methanol is removed by rotary evaporation. Then the organic layer was washed with water, and finally the organic layer was dried with magnesium sulfate, and the pure product of methyl oleate was obtained by suction filtration and vacuum distillation. 172℃~175℃ / 5mmHg. Yield 71%.

Embodiment 3

[0056] Embodiment 3: the synthesis of oleyl alcohol

[0057] Put lithium aluminum hydride (12g, 0.316mol) and 220ml of tetrahydrofuran into a 500ml single-necked bottle, then put it in an ethanol ice bath, then slowly add methyl oleate (90g, 0.3mol) to the reaction with a constant pressure separatory funnel In the system, stir at -10°C for half an hour after the addition, then raise the temperature of the system to 30°C for 3 hours, cool the reactant to -10°C, add 12g of water, 12g of sodium hydroxide dilute solution, 40g of Sodium Sulphate of Water. Mix well and filter, then spin the filtrate to remove the solvent to obtain oleyl alcohol. Yield 80%.

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

PropertyMeasurementUnit
surface tensionaaaaaaaaaa
Login to View More

Abstract

The invention discloses a bio-based primary amine cationic surfactant and a preparation method thereof, belonging to the technical field of surfactant science and application. The synthesis of the surfactant of the present invention includes taking oleic acid and methanol as the starting raw materials to undergo esterification, reduction, and substitution in sequence to synthesize oleyl alcohol, and the substitution, substitution, reduction, and acidification reactions of oleyl alcohol and 3-hydroxybenzaldehyde to obtain the final Biobased primary amine cationic surfactant. The source of raw materials is wide, bio-renewable, green and environmentally friendly, and has high biodegradability. It enriches the types of bio-based surfactants that use renewable resources as raw materials, and can be widely used in the research of surfactant self-organization systems.

Description

technical field [0001] The invention relates to a bio-based primary amine cationic surfactant and a preparation method thereof, belonging to the technical field of surfactant science and application. Background technique [0002] Biobased surfactants have attracted increasing attention due to their reproducibility and excellent surface activity. The invention uses oleic acid as a starting material to obtain a novel bio-based primary amine cationic surfactant through a seven-step reaction, and investigates its surface tension properties. [0003] Most of the cationic surfactants are nitrogen-containing organic compounds, that is, derivatives of organic amines. Simple amine hydrochloric acid (or other inorganic acid) salts and acetates, etc., when the pH>7, free amines are easy to precipitate from the aqueous solution, thus losing surface activity. [0004] Cationic surfactants have excellent properties, and their properties are closely related to their molecular configur...

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): C07C217/58C07C213/08B01F17/16C09K23/16
CPCC07C217/58C09K23/00
Inventor 裴晓梅李朝旺宋冰蕾李文楷崔正刚
Owner JIANGNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com