Synthesis method of vinyl dimethoxysilane end-sealing modified polyether

The invention relates to the technical field of synthesis of end-sealing polyether, specifically to a synthesis method of vinyl dimethoxysilane end-sealing modified polyether. The polyether is subjected to vinyl dimethoxysilane end-sealing modification, wherein vinyl dimethoxysilane has electron absorbing characteristic, can reduce the hydrolytic activity of a methoxy group on the same silicon atom and is unlike the triethoxy with high activity; the polyether which is subjected to vinyl dimethoxysilane end-sealing modification has high activity and short curing time; in addition, the synthesismethod of the polyether is relatively low in production process requirement, low in colloid crosslinking density and suitable for popularizing; furthermore, the polyether is subjected to vinyl dimethoxysilane end-sealing modification, so that the surface tension is reduced and the wetting capability on a base material by a polymer is improved; the ultraviolet resistance and the weather resistanceof the modified polyether