abstract |
(57) [Summary] (Modified) [PROBLEMS] The present invention provides a porous silica material having excellent self-holding properties as well as porosity and transparency. The present invention relates to a copolymer of tetraalkoxysilane and alkenyloxytrialkoxysilane, a porous silica material comprising the same, and a porous silica film. In addition, the present invention, in the presence of a surfactant, co-condensation of tetraalkoxysilane and alkenyloxy trialkoxysilane, and then calcining the porous tetraalkoxysilane and alkenyloxy trialkoxysilane The present invention relates to a method for producing a copolymer. |