Preparation method of polysiloxane containing alkyl and glycosyl

A technology of polysiloxane and glycoside group, which is applied in the field of preparation of polysiloxane containing alkyl group and glycoside group, to achieve the effect of good emulsifying ability

Inactive Publication Date: 2013-07-31
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The surface activity of alkyl glycosides is not as good as silicone surfactants, polysiloxane surfactants are better for emulsified silicone oil / water systems, but worse for alkanes / water systems

Method used

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  • Preparation method of polysiloxane containing alkyl and glycosyl
  • Preparation method of polysiloxane containing alkyl and glycosyl
  • Preparation method of polysiloxane containing alkyl and glycosyl

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Add 2.32kg of allyl alcohol, 1.26kg of glucose, and 48.16g of p-toluenesulfonic acid into the reaction kettle, heat to dissolve, and control the temperature at 100°C. After reacting under reduced pressure for 6 hours, add sodium hydroxide to neutralize the catalyst to make it Inactivate. Evaporate unreacted allyl alcohol under reduced pressure, add 0.34kg terminal olefin and 5.18kg hydrogen-containing silicone oil, heat to 120°C, and react for 8 hours to obtain a polysiloxane product containing alkyl and glycoside groups, and measure its surface tension It is 22.7mN / m.

Embodiment 2

[0022] Add 4.08kg of ethylene glycol monoallyl ether, 1.08kg of glucose, and 61.92g of p-toluenesulfonic acid into the reaction kettle, heat to dissolve, and control the temperature at 110°C. After reacting under reduced pressure for 7 hours, add sodium hydroxide and catalysts to deactivate them. Evaporate unreacted ethylene glycol monoallyl ether under reduced pressure, add 0.56kg terminal olefin and 8.14kg hydrogen-containing silicone oil, heat to 120°C, and react for 6 hours to obtain polysiloxane products containing alkyl and glycoside groups , The measured surface tension is 23.5mN / m.

Embodiment 3

[0024] Add 5.84kg of diethylene glycol monoallyl ether, 0.90kg of glucose, and 34.40g of p-toluenesulfonic acid into the reaction kettle, heat to dissolve, and control the temperature at 120°C. After reacting under reduced pressure for 8 hours, add sodium hydroxide Neutralizes the catalyst and deactivates it. Evaporate unreacted diethylene glycol monoallyl ether under reduced pressure, add 0.84kg terminal olefin and 2.22kg hydrogen-containing silicone oil, heat to 120°C, and react for 6 hours to obtain polysiloxane containing alkyl and glycoside groups Product, its surface tension measured is 21.2mN / m.

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Abstract

The invention provides a preparation method of polysiloxane containing alkyl and glycosyl, and belongs to the technical field of organic compound synthesis. The substance is a compound obtained by a bonding reaction for forming silicon and oxygen or carbon in the molecule. The preparation method comprises the steps of: reacting allyl alcohol or allyl ether and glucose under the action of acidic catalyst to prepare allyl glucoside, and then reacting with terminal olefin and hydrogen-containing silicone oil under the catalysis of chloroplatinic acid to obtain polysiloxane containing alkyl and glycosyl. The obtained polysiloxane has surface tension of 21-24 mN / m, and has wide application.

Description

technical field [0001] The invention relates to a compound obtained by forming a silicon bond in a molecule with or without an oxygen or carbon bond reaction, in particular to a polysiloxane containing an alkyl group and a glycoside group and a preparation method thereof. Background technique [0002] In addition to the properties of ordinary surfactants, polysiloxane surfactants have more advantages than ordinary surfactants. They can be applied to non-aqueous systems, have lower surface tension, good wetting and spreading Non-precipitation at low temperature, extremely low physiological toxicity, high and low temperature resistance, etc. For example, patent CN101690878A reports a method for preparing polyether-modified trisiloxane surfactant, which is prepared by addition reaction of allyl polyether and hydrogen-containing trisiloxane. [0003] Alkyl glucoside is a product obtained by losing a molecule of water from the hemiacetal hydroxyl group and fatty alcohol hydroxyl...

Claims

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Application Information

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IPC IPC(8): C07H15/08C08G77/38B01F17/54C09K23/54
Inventor 韩富周雅文徐宝财武丽丽
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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