| abstract |
Disclosed is an aqueous dispersion of fluorine-containing polymer wherein the fluorine-containing polymer is dispersed with a polyfluoroalkyl phosphonate represented by the general formula C n F 2n+1 (CH 2 CF 2 ) a (CF 2 CF 2 ) b (CH 2 CH 2 ) c P(O)(OM 1 )(OM 2 ) [I] (wherein M 1 is a hydrogen atom, alkali metal, ammonium base or organic amine base, M 2 is an alkali metal, ammonium base or organic amine base, n is an integer 1-6, a is an integer 1-4, b is an integer 1-3 and c is an integer 1-3) as emulsifier. Said aqueous dispersion of fluorine-containing polymer uses polyfluoroalkyl phosphonate(s) of low bioaccumulation for emulsifier and has excellent mechanical stability. |