A novel polymerizable surfactant represented by the general formula (1):
(wherein, R1 represents a hydrogen atom or a methyl group, Rf represents a hydrocarbon group in which one or more hydrogen atoms are replaced by a fluorine atom or atoms, or an acyl group in which one or more hydrogen atoms are replaced by a fluorine atom or atoms, AO and AO' represent a group selected from an oxyalkylene group having 2 - 4 carbon atoms or a styrene oxide residue, m and m' are 0 or a number between 1 and 1,000, X represents a hydrogen atom or a hydrophilic group).