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Tetrasiloxane dimeric surfactant containing sugar acylamino and preparation method

A technology containing sugar amide group and tetrasiloxane, which is applied in the field of organosilicon compound preparation, can solve problems such as affecting the use performance and losing surface activity, and achieves the effect of good adsorption performance and difficult hydrolysis

Inactive Publication Date: 2014-10-01
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, this type of trisiloxane is easily hydrolyzed in aqueous solution, and most of it has been hydrolyzed in about a week. Even the gemini-type trisiloxane surfactant is hydrolyzed in about a month, losing its surface activity and affecting its performance.

Method used

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  • Tetrasiloxane dimeric surfactant containing sugar acylamino and preparation method
  • Tetrasiloxane dimeric surfactant containing sugar acylamino and preparation method
  • Tetrasiloxane dimeric surfactant containing sugar acylamino and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Add 1.62kg of hexamethyldisiloxane, 1.99kg of chloropropyltrimethoxysilane, and 0.006kg of concentrated sulfuric acid into reaction kettle 1, react at a temperature of 40°C for 4 hours, add sodium hydroxide to deactivate the catalyst, and filter The solid was removed and distilled under reduced pressure to obtain chloropropyltetrasiloxane. Add 3.73kg of chloropropyltetrasiloxane and 0.74kg of 1,3-propylenediamine into the reaction kettle 2, heat to 60°C, and react for 4 hours. - Aminopropyl-γ-aminopropyltetrasiloxane. Add 4.10 kg of N-β-aminopropyl-γ-aminopropyltetrasiloxane and 1.78 kg of gluconolactone into reaction kettle 3, use methanol as solvent, heat to 60° C., and react for 8 hours. Add 0.87 kg of ethylene glycol diglycidyl ether again, and continue to react for 12 hours. The solvent methanol was distilled off to obtain a tetrasiloxane gemini surfactant containing sugar amide groups. It is measured that it does not hydrolyze within 6 months in water.

Embodiment 2

[0035] Add 8.12kg of hexamethyldisiloxane, 1.99kg of chloropropyltrimethoxysilane, and 0.10kg of acid clay to reaction kettle 1, react at a temperature of 50°C for 4 hours, remove the catalyst by filtration, and distill under reduced pressure to obtain chloropropane Tetrasiloxane. Add 3.73kg of chloropropyltetrasiloxane and 2.64kg of 1,4-butanediamine into the reaction kettle 2, heat to 80°C, and react for 3 hours. - Aminobutyl-γ-aminopropyltetrasiloxane. Add 4.24kg of N-β-aminobutyl-γ-aminopropyltetrasiloxane and 1.96kg of gluconic acid into reaction kettle 3, use ethanol as solvent, heat to 70°C, and react for 8 hours. Add 0.94 kg of propylene glycol diglycidyl ether again, and continue to react for 12 hours. The solvent ethanol is distilled off to obtain the tetrasiloxane gemini surfactant containing sugar amido group. It is measured that it does not hydrolyze within 6 months in water.

Embodiment 3

[0037] Add 16.24kg of hexamethyldisiloxane, 1.99kg of chloropropyltrimethoxysilane, and 0.54kg of concentrated sulfuric acid into reaction kettle 1, react at a temperature of 60°C for 4 hours, add sodium hydroxide to deactivate the catalyst, and filter The solid was removed and distilled under reduced pressure to obtain chloropropyltetrasiloxane. Add 3.73kg of chloropropyltetrasiloxane and 6.12kg of 1,5-pentamethylenediamine into the reaction kettle 2, heat to 90°C, react for 2 hours, the mixture is allowed to stand for layers, and the upper layer is distilled under reduced pressure to obtain N-β -Aminoamyl-γ-aminopropyltetrasiloxane. Add 4.38 kg of N-β-aminopentyl-γ-aminopropyltetrasiloxane and 1.78 kg of mannolactone into reaction kettle 3, use methanol as solvent, heat to 80° C., and react for 10 hours. Then, 1.01 kg of butanediol diglycidyl ether was added, and the reaction was continued for 12 hours. The solvent methanol was distilled off to obtain a tetrasiloxane gemin...

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Abstract

The invention provides a tetrasiloxane dimeric surfactant containing sugar acylamino and a preparation method and belongs to the technical field of organic compound composition. The tetrasiloxane containing sugar acylamino is a compound obtained in a bonding reaction through silicone, oxygen, nitrogen or carbon in molecules; the preparation method comprises the following steps: propyl chloride tetrasiloxane is prepared by hexamethyldisiloxane and chloride propyl silane at presence of an acid catalyst; N-Beta-ammonia alkyl-Gamma-aminopropyl tetrasiloxane is prepared by propyl chloride tetrasiloxane and alkyl diamine; the tetrasiloxane containing sugar acylamino is prepared by N-Beta-ammonia alkyl-Gamma-aminopropyl tetrasiloxane and saccharic acid or saccharic acid internal ester in a lower alcohol solvent and then diglycidyl ether is added to obtain the tetrasiloxane dimeric surfactant containing sugar acylamino. The tetrasiloxane dimeric surfactant containing the sugar acylamino cannot be hydrolyzed in the water with 6 months and can be widely applied in the fields of pesticides and the like.

Description

technical field [0001] The invention relates to the field of preparation methods of organosilicon compounds, in particular to a tetrasiloxane gemini surfactant containing sugar amido groups and a preparation method thereof. Background technique [0002] In addition to the properties of ordinary surfactants, trisiloxane surfactants also have more advantages than ordinary surfactants. They can be applied to non-aqueous systems, have lower surface tension, and extremely low physiological toxicity. In particular, it has good wetting and spreading properties. [0003] Gemini surfactant is a kind of surface formed by linking two traditional surfactant monomers through chemical bonds, and connecting the two surfactants together with a linking group near the hydrophilic head group or near the hydrophilic head group. Active agent, its remarkable feature is that the critical micelle concentration is 1 to 2 orders of magnitude lower than that of the corresponding surfactant monomer. ...

Claims

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Application Information

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IPC IPC(8): B01F17/56B01F17/54B01F17/22C07H15/04C07H1/00C07F7/18A01N25/30C09K23/56C09K23/22C09K23/54
Inventor 韩富武丽丽周雅文徐宝财
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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