Patent ID: 7101949

Claim:
A method of making a siloxysilane monomer, said method comprising: carrying out a co-hydrolysis of a trichlorosilane having a polymerizable group R with a tri-substituted monochlorosilane and an acid scavenger to produce said siloxysilane monomer that has a formula of wherein X is selected from the group consisting of C 1-10 alkylene, C 1-10 alkyleneoxy, C 6-36 arylene and C 6-36 aryleneoxy; and the R 1 groups may be the same or different selected from the group consisting of C 1-10 alkyl, C 1-20 cycloalkyl, C 6-36 aryl, C 6-36 aryl ether, C 8-38 heterocycle, C 6-36 heteroycle with one or more substituents. C 1-10 alkyl ether and C 8-38 aryloxy; z are the same or different integers; and 1 ≦z <20.