a mole of from about 5 to about 100 preferably from about 10 to about 90 n represents a mole of from 0 to about 95 and as noted above z in the formula represents at least one ethylenically unsaturated nonionic monomer examples of these include methyl acrylate ethyl acrylate ethyl methacrylate benzyl acrylate benzyl methacrylate propyl acrylate propyl methacrylate iso propyl acrylate iso propyl methacrylate butyl acrylate butyl methacrylate hexyl acrylate hexyl methacrylate octadecyl methacrylate octadecyl acrylate lauryl methacrylate lauryl acrylate hydroxyethyl acrylate hydroxyethyl methacrylate hydroxyhexyl acrylate hydroxyhexyl methacrylate hydroxyoctadecyl acrylate hydroxyoctadecyl methacrylate hydroxylauryl methacrylate hydroxylauryl acrylate phenethylacrylate phenethyl methacrylate 6 phenylhexyl acrylate 6 phenylhexyl methacrylate phenyllauryl acrylate phenyllaurylmethacrylate 3 nitrophenyl 6 hexyl methacrylate 3 nitrophenyl 18 octadecyl acrylate ethyleneglycol dicyclopentyl ether acrylate vinyl ethyl ketone vinyl propyl ketone vinyl hexyl ketone vinyl octyl ketone vinyl butyl ketone cyclohexyl acrylate 3 methacryloxypropyl dimethylmethoxysilane 3 methacryloxypropyl methyldimethoxysilane 3 methacryloxypropyl pentamethyldisiloxane 3 methacryloxypropyl tris trimethylsiloxy silane 3 acryloxypropyl dimethylmethoxysilane acryloxypropylmethyldimethoxysilane trifluoromethyl styrene trifluoromethyl acrylate trifluoromethyl methacrylate tetrafluoropropyl acrylate tetrafluoropropyl methacrylate heptafluorobutyl methacrylate isobutyl acrylate isobutyl methacrylate 2 ethylhexyl acrylate 2 ethylhexyl methacrylate isooctyl acrylate isooctyl methacrylate n n dihexyl acrylamide n n dioctyl acrylamide vinyl propionate vinyl acetate vinyl butyrate vinyl butyl ether and vinyl propyl ether ethylene styrene vinyl carbazole vinyl naphthalene vinyl anthracene vinyl pyrene methyl methacrylate methyl acrylate.