| 摘要 |
A method of combining a siloxy group (-SiO-) with a ketene-reactive compound to form a siloxy-containing product comprises: (a) subjecting a silyl diketone to photolysis under conditions effective for generating a siloxy ketene intermediate therefrom, said silyl diketone having the formula <IMAGE> wherein Si is silicon, R1 and R4 are hydrocarbon groups containing from 1 to 18 carbons, and R2 and R3 are hydrocarbon groups containing from 1 to 6 carbons, said photolysis being carried out by irradiating said silyl diketone with light of a wavelength from 200 to 800 nm; and, thereafter, (b) contacting the generated siloxy ketene intermediate with a ketene-reactive compound under conditions effective for reaction therewith, said compound being selected from the group consisting of (i) a diene polymer containing a plurality of unsaturated carbon bonds, (ii) an alkylene or cycloalkylene compound containing at least one unsaturated linkage; and (iii) an aldehyde containing one or more aldehyde groups.
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