| http://www.w3.org/ns/prov#value | - where the alkoxy groups are the same or different from each other, each R1 independently comprises C1 to about C20 aliphatic, about C5 to about C20 cycloaliphatic, or about C6 to about C20 aromatic, each R2 independently comprises C1 to about C6, and p is an integer from 1 to 3.
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