Preferred surfactants having polymerizable vinyl groups include quaternary ammonium compounds containing an alkyl group having more than 12 carbons, such as N,N-dimethyl, N-erucyl, N-vinylbenzyl ammonium chloride and oleyl-hydroxyethyl-vinylbenzyl imidazolinium chloride; and nonionic compounds such as acrylate- or methacrylate-capped poly(ethylene oxide) (EO)/polybutylene oxide (BO) diblock polyme