Method for preparing diol by hydrating alkylene oxide and catalyst thereof
A technology of alkylene oxide water and alkylene oxide, which is applied in the direction of organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, hydrolysis preparation, etc., and can solve problems such as poor swelling resistance and poor thermal stability
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Embodiment 1
[0074] Graphene oxide was prepared by the Hummers method, ultrasonically dispersed into 400ml of 1mg / ml aqueous dispersion, 1mmol / L sodium hydroxide solution was added to adjust the pH to 10, 0.8g tetrabutylammonium bromide and 4.0g p-chloride were added Methyl styrene was reacted with stirring in an oil bath at 60°C for 3h. After the reaction is complete, cool to room temperature, add 200ml of chloroform and shake well, then let stand to separate the organic phase and filter to remove insoluble matter. After the mixed solution was concentrated to 10ml, the graphene-p-methylstyrene compound was obtained after washing with ethanol and drying.
[0075] Dissolve 2.5g of gelatin in 200ml of deionized water, and disperse evenly by ultrasonic. Take 45.3g of styrene, 4.4g of divinylbenzene, 0.5g of benzoyl peroxide and 0.05g of graphene-p-methylstyrene compound, ultrasonically disperse for 30min and then let it stand for 1h. It can be seen that the uniform black dispersion has no pr...
Embodiment 2
[0079]Graphene oxide was prepared by the Hummers method, ultrasonically dispersed into 400ml of 1mg / ml aqueous dispersion, 1mmol / L sodium hydroxide solution was added to adjust the pH to 10, 0.8g tetrabutylammonium bromide and 4.0g p-chloride were added Methyl styrene was reacted with stirring in an oil bath at 60°C for 3h. After the reaction is complete, cool to room temperature, add 200ml of chloroform and shake well, then let stand to separate the organic phase and filter to remove insoluble matter. After the mixed solution was concentrated to 10ml, the graphene-p-methylstyrene compound was obtained after washing with ethanol and drying.
[0080] Dissolve 2.5g of gelatin in 200ml of deionized water, and disperse evenly by ultrasonic. Take 45.3g of styrene, 4.4g of divinylbenzene, 0.5g of benzoyl peroxide and 0.22g of graphene-p-methylstyrene compound, ultrasonically disperse for 30min and then let it stand for 1h. It can be seen that the uniform black dispersion has no pre...
Embodiment 3
[0084] Graphene oxide was prepared by the Hummers method, ultrasonically dispersed into 400ml of 1mg / ml aqueous dispersion, 1mmol / L sodium hydroxide solution was added to adjust the pH to 10, 0.8g tetrabutylammonium bromide and 4.0g p-chloride were added Methyl styrene was reacted with stirring in an oil bath at 60°C for 3h. After the reaction is complete, cool to room temperature, add 200ml of chloroform and shake well, then let stand to separate the organic phase and filter to remove insoluble matter. After the mixed solution was concentrated to 10ml, the graphene-p-methylstyrene compound was obtained after washing with ethanol and drying.
[0085] Dissolve 2.5g of gelatin in 200ml of deionized water, and disperse evenly by ultrasonic. Take 45.3g of styrene, 4.4g of divinylbenzene, 0.5g of benzoyl peroxide and 0.38g of graphene-p-methylstyrene compound, ultrasonically disperse for 30min and then let it stand for 1h. It can be seen that the uniform black dispersion has no pr...
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