4 results about "Trimethylsilanol" patented technology

The application discloses a synthesis method of hexa-substituted oxy-cyclotriphosphazene compounds, under nitrogen condition, crystallized hexachlorocyclotriphosphazene is dissolved in a solvent, and then is added into a solution of one or two of phenol / 4-nitrophenol / trifluoroethanol / 4-ethylphenol / 4-methoxyphenol / 4-methylthioether phenol, and then potassium trimethylsilanol is added, and reaction is carried out at 65-100 DEG C for 6-24 h; after the reaction is completed, corresponding hexa-substituted oxy-cyclotriphosphazene derivatives are obtained through post-treatment. The application selects a solvent with high safety and low toxicity and high-activity potassium trimethylsilanol to realize the synthesis of phenol and alkyl alcohol hexa-substituted oxy-cyclotriphosphazene; and through optimization of the post-treatment method, the residual phenol and salt in the reaction system can be efficiently removed, and the waste water and waste liquid generated due to post-treatment are greatly reduced.

This invention provides a method for preparing a flexible solid-state dry electrode sheet. The method first mixes polytetrafluoroethylene (PTFE) with lithium trimethylsilanolate to obtain a first powder; then, an electrode active material and a conductive agent are added to the first powder and mixed to obtain a second powder; the second powder is then hot-rolled into a film and thinned by rolling to form an electrode film; finally, the electrode film is hot-pressed onto a current collector to obtain the flexible solid-state dry electrode sheet. This method modifies PTFE by adding lithium trimethylsilanolate, improving the adhesion of the binder and increasing mechanical strength. By controlling the amount of lithium trimethylsilanolate and PTFE, this invention results in an electrode sheet with good mechanical properties and viscoelasticity; furthermore, the adhesion of lithium trimethylsilanolate to the fiber surface provides a lithium-ion pathway, thereby increasing ionic conductivity.

The present application relates to a kind of 2-amino-3-phenyl-2-methyl butyric acid compound synthesis method, comprising the following steps: (1) N-(benzyl) alanine is reacted with benzaldehyde, and 3-benzyl-4-methyl-2-phenyl oxazolidine-5-ketone is generated;(2) 3-benzyl-4-methyl-2-phenyl oxazolidine-5-ketone is reacted with the compound shown in formula (II) under the action of catalyst to generate the compound shown in formula (III);(3) the compound shown in formula (III) is reacted with potassium trimethylsilanol, and the compound shown in formula (I) is generated, i.e. the 2-amino-3-phenyl-2-methyl butyric acid compound.The synthesis method of the present application fills the blank of the synthesis method of 2-amino-3-phenyl-2-methyl butyric acid compound, and the yield of the synthesis method of the present application is high, and it is suitable for industrial production.

This invention provides a comprehensive method for preparing vinyl sulfate and the vinyl sulfate obtained therefrom. The method includes: mixing bis(trimethylsilyl)sulfate, alkyl diol, a metal halide catalyst, and a first solvent; performing a first reaction to obtain catalyst residue, trimethylsilanol, and vinyl sulfate; and then reacting the catalyst residue with trimethylsilanol to recover hexamethyldisiloxane, which is used as a raw material for preparing bis(trimethylsilyl)sulfate. This comprehensive method provides vinyl sulfate, and the catalyst can be used in two ways, generating the byproduct hexamethyldisiloxane, which can be recycled and used as a raw material to react with sulfuric acid to prepare bis(trimethylsilyl)sulfate. This achieves material recycling, significantly reduces economic costs, greatly improves atom economy and the greenness of the process, and has certain feasibility in industrial production.