The interaction of ε-caprolactone with tertbutylhydroperoxide led to tert-butylperoxyhexanoate. Peroxymaleinate has been obtained by the reaction of tert-butylperoxyhexanoate with a maleic anhydride. Functional monomers have been synthesized by reactions of peroxymaleinate with propansultone and polyethylene glycol (PEG). The obtained compounds exhibit surface active properties, reducing a surface tension at the water-air interface.