There have been synthesized and characterized by stalagmometric method a number of novel polyacrylate complexes of ionic-liquid salts based on diethanolamine and alkyl halides (amyl bromide, heptyl bromide and decyl bromide). There has been revealed a capability of the obtained complexes to efficiently remove (collect or disperse) thin petroleum films off water surface. Dependence of this capability from composition of the polymer complexes has been studied