Patent ID: 7834119

Claim:
A method for preparing an organic silicate polymer, comprising: oxidizing hydrosilane oligomer represented by the following Chemical Formula 1 or cyclic hydrosilane oligomer represented by the following Chemical Formula 2 in the presence of water or alcohol to prepare siloxane oligomer; mixing the siloxane oligomer or a mixture of the siloxane oligomer and silane or silane oligomer represented by the following Chemical Formula 4 or Chemical Formula 5, respectively, with organic solvent to form a first mixture; and hydrolyzing and condensing the first mixture by adding water and catalyst: R 1 n Si(OSi) m H (2m−n+4) Chemical Formula 1 wherein: R 1 is hydrogen, fluorine, aryl, vinyl, allyl, or linear or branched C 1-4 alkyl substituted or unsubstituted with fluorine; m is an integer of 1 to 20; n is an integer of 1 to 20, and (2m−n+4) is an integer of 1 to 43; wherein: R 2 is hydrogen, fluorine, aryl, vinyl, allyl, or linear or branched C 1-4 alkyl substituted or unsubstituted with fluorine; k and l are independently an integer of 3 to 10, and (21−k) is an integer of 1 to 17; SiR 5 p R 6 4-p Chemical Formula 4 wherein: R 5 is hydrogen, aryl, vinyl, allyl, or linear or branched C 1-4 alkyl substituted or unsubstituted with fluorine; R 6 is acetoxy, hydroxy, or linear or branched C 1-4 alkoxy; and P is an integer of 0 to 2; R 7 q R 8 3-q Si-M-SiR 9 r R 10 3-r Chemical Formula 5 wherein: R 7 and R 9 are hydrogen, aryl, vinyl, allyl, or linear or branched C 1-4 alkyl substituted or unsubstituted with fluorine, respectively; R 8 and R 10 are acetoxy, hydroxy, or linear or branched C 1-4 alkoxy, respectively; M is C 1-6 alkylene or phenylene; and q and r integers of 0 to 2.