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Polyglycol modified trisilicate containing glucose amide group and preparation method

A technology containing glucosamide group and modified with polyethylene glycol, applied in the direction of sugar derivatives, organic chemistry, etc., can solve problems such as unreported preparation methods, and achieve the effects of cheap catalyst, good spreadability, and avoidance of toxicity

Inactive Publication Date: 2005-08-31
CHINA RES INST OF DAILY CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polyethylene glycol-modified trisiloxane containing glucosamide group proposed by the present invention and its preparation method have not been reported

Method used

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  • Polyglycol modified trisilicate containing glucose amide group and preparation method
  • Polyglycol modified trisilicate containing glucose amide group and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 1.62kg of hexamethyldisiloxane, 2.06kg of aminoethylaminopropyldimethoxymethylsilane, and 1.82g of tetramethylammonium hydroxide into the reaction kettle, dissolve by heating, and control the temperature at 100℃ to react After 4 hours, the temperature was increased and heated to 130°C to deactivate the catalyst. Distill off aminoethylaminopropyltrisiloxane under reduced pressure, add equimolar gluconolactone, use methanol as solvent, heat to reflux, and react for 8 hours. Then, an equimolar amount of ethylene glycol methyl ether glycidyl ether was added, and the reaction was continued for 12 hours. The product is obtained by evaporating the solvent methanol. The lowest surface tension of its aqueous solution measured with K12 surface tension meter is 20.2mN / m, and the critical micelle concentration is 2.5×10 -4 mol / L, the minimum contact angle on the quartz surface is 5°.

Embodiment 2

[0021] Add 8.10kg of hexamethyldisiloxane, 2.34kg of aminoethylaminopropyl diethoxymethylsilane, and 168g of potassium hydroxide into the reaction kettle, and dissolve by heating. The temperature is controlled at 120°C. After 5 hours of reaction, Add acetic acid to neutralize the catalyst to deactivate it, and then evaporate unreacted hexamethyldisiloxane. Distill off aminoethylaminopropyltrisiloxane under reduced pressure, add equimolar gluconolactone, use methanol as solvent, heat to reflux, and react for 10 hours. Then, an equimolar amount of diethylene glycol methyl ether glycidyl ether was added, and the reaction was continued for 12 hours. The product is obtained by evaporating the solvent methanol. The lowest surface tension of the aqueous solution measured with K12 surface tension meter is 20.6mN / m, and the critical micelle concentration is 1.4×10 -4 mol / L, the minimum contact angle on the quartz surface is 18°.

Embodiment 3

[0023] Add 16.20kg of hexamethyldisiloxane, 2.06kg of aminoethylaminopropyldimethoxymethylsilane, and 151.8g of tetrabutylphosphonium hydroxide into the reaction kettle, dissolve by heating, control the temperature at 80℃, and react for 4 hours After that, the temperature was increased and heated to 110° C. to deactivate the catalyst, and at the same time, unreacted hexamethyldisiloxane was evaporated. Distill off aminoethylaminopropyltrisiloxane under reduced pressure, add equimolar gluconolactone, use methanol as solvent, heat to reflux, and react for 8 hours. Then, an equimolar amount of triethylene glycol methyl ether glycidyl ether was added, and the reaction was continued for 12 hours. The product is obtained by evaporating the solvent methanol. The lowest surface tension of its aqueous solution measured with K12 surface tension meter is 20.7mN / m, and the critical micelle concentration is 6×10 -5 mol / L, the minimum contact angle on the quartz surface is 15°.

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Abstract

A polyethanediol modified trisiloxane containing glucosylamido used as the assistant of agricultural chemical to decrease the surface tension of water is prepared through catalytic reaction between hexamethyldisiloxane and aminosilane to obtain aminotrisiloxane, reacting on lactone gluconate in methanol to obtain trisiloxane containing glucosylamido, and modifying it by polyethanediol method glicideether.

Description

Technical field [0001] The present invention relates to a compound obtained by forming a silicon-containing bond in the molecule with or without nitrogen, oxygen or carbon bonding reaction, and in particular to a polyethylene glycol-modified trisiloxane containing a glucamide group and其制造方法。 The method of preparation. Background technique [0002] Existing methods for preparing sugar amido trisiloxanes, such as Wagner R. (Applied Organometallic Chemistry, 1996, 10, 421) reported a method for preparing sugar amido trisiloxanes, through hydrogen-containing silane and hexamethyl Disiloxane is reacted to obtain hydrogen-containing trisiloxane, and chloroplatinic acid is used as a catalyst to react with allylamine to obtain aminotrisiloxane, and then to react with sugar lactone to obtain the product. [0003] The trisiloxane containing glucamide group has a hydrosilation reaction during the synthesis process, and the catalyst used in this reaction is expensive; and allylamine is very ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H23/00
Inventor 韩富张高勇张越谷惠先张国栋
Owner CHINA RES INST OF DAILY CHEM IND
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