Two high-molecular-mass surfactants, butyl acrylate-butyl methacrylate-methacrylic acid copolymer sodium salt (BBMA) and butyl methacrylate-methacryloyloxyethyltrimethylammonium chloride copolymer (BMAC), were utilized as new pseudo-stationary phases in micellar electrokinetic chromatography (MEKC). As with BBMA, BMAC was successfully employed as a pseudo-stationary phase, but reversal of the electroosmotic flow was observed. The capacity factors were proportional to the concentration of BMAC, and the critical micelle concentration was effectively zero. The effect of the addition of methanol and a non-ionic surfactant were studied in MEKC with BBMA. Chiral separation was studied by cyclodextrin (CD) modified MEKC with BBMA: enantiomeers of dansylated- dl-amino acids were separated with 2% BBMA and 10 m M β-CD, giving larger separation factors than those obtained with 100 m M sodium dodecyl sulfate adn 60 m M β-CD.