| http://www.w3.org/ns/prov#value | - Polysiloxanes, the polymer units of which are of the general formula in which R represents a member of the group consisting of alkyl, aryl, acetoxymethyl, and benzoxymethyl, in which polysiloxanes some of the Rs are of the group consisting of alkyl and aryl radicals and at least one of theflRfs is selected from the group consisting of acetoxymethyl and benzoxymethyl radicals, and n is an integer f
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