nd B monomers; [0123] Y is a divalent linking group; [0124] n is zero or 1; [0125] m is an integer of from 1 to 3; [0126] R is hydrogen, C1-10 alkyl, substituted or unsubstituted phenyl, C1-10 alkoxy; and [0127] Z is a monovalent siloxane polymeric moiety. [0128] Examples of A monomers are lower to intermediate methacrylic acid esters of C1-12 straight or branched chain alcohols, styrene, vinyl es