Ladder like polysilsesquioxane, linear polysiloxane, adhesive, ladder like polysilsesquioxane and method for producing linear polysiloxane

摘要

Problem to be solved: to provide a ladder type polysilsesquioxane, a linear polysiloxane, an adhesive, a ladder type polysilsesquioxane capable of strongly bonding various materials, and a method of producing a linear polysiloxane.Solution: the soluble ladder type polysilsesquioxane is a ladder type polysilsesquioxane having a unit of T units represented by rsio3 / 2 as the substituent as R, and has a catechol group of 25% or more of the substituent.Diagram