The first component oligomer, and optionally the second component oligomer, comprise polymerized monomer units derived from of an ethylenically-unsaturated monomer having pendent poly(alkylene oxide) group of the formula: Z-Q-(CH(R1)???CH2???O)m???R2, wherein Z is a polymerizable ethylenically unsaturated moiety, R1 is a H or a C1 to C4 alkyl group, R2 is a H, a C1 to C4 alkyl group, aryl group, o