141613-69-6Relevant articles and documents
Method for preparing hybrid cyclo-boron siloxane
-
Paragraph 0032; 0033; 0034; 0035; 0036; 0037; 0038, (2016/10/10)
The invention relates to the field of chemistry and chemical engineering, provides a cheap and efficient cyclo-boron siloxane intermediate in order to prepare high-performance boracic polysiloxane, and particularly provides a method for preparing hybrid cyclo-boron siloxane. Under inert gas shielding, a mixture of alkyl boric acid and an organic solvent A is dropwise added to dialkyl dichloro-slane, stirring and reacting are carried out for 3 h to 8 h at the temperature of -20 DEG C to 80 DEG C, then the mixture is added into a mixture of an organic solvent B and metallic oxide, filtering and washing are carried out after reacting is carried out for 6 h to 18 h, the organic solvent A and the organic solvent B are evaporated out, and hybrid cyclo-boron siloxane is obtained. The method has the advantages that the raw materials can be obtained easily, and cost is low, and the compound can be used for synthesizing boron-silicon rubber, a heat-resisting adhesive, a heat-resisting coating and other boracic polysiloxane products, and can be widely applied to aerospace, electronics, chemical engineering, machinery and other industries.