| 摘要 |
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 CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)c P(O)(OM1)(OM2) [I] (wherein M1 is a hydrogen atom, alkali metal, ammonium base or organic amine base, M2 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. |
