The process of claim 1, wherein said monomer units having pendent hydrophilic poly(alkylene oxide) groups is of the formula: Z-Q-(CH(R1)???CH2???O)n???R2,???(I) 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, or combinations thereof and n is from 2 to 100, and Q is a divalent linking group.