| 摘要 |
The present invention provides a fluorinated surfactant comprising fluorinated units and hydrophilic non-fluorinated units wherein said fluorinated surfactant can be obtained by (i) a free radical polymerization of: (a) one or more fluorinated monomers having the general formula (I): <?in-line-formulae description="In-line Formulae" end="lead"?>(Rf)n-X-C(R1)-CH2 (I)<?in-line-formulae description="In-line Formulae" end="tail"?> wherein Rf represents a perfluorinated polyether group, X represents a bond or a linking group, R1 represents a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, and n is 1 or 2; and (b) at least one non-fluorinated monomer having at least one hydrophilic group or a precursor thereof; and (ii) conversion of said precursor when present, into a corresponding hydrophilic group.
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