| abstract |
The present invention relates to fluoropolymers and films comprising fluoropolymers. Provided are copolymers, porous membranes prepared from said copolymers, and methods of treating fluids using said porous membranes to remove metal ions, for example, from fluids produced in the microelectronics industry, wherein said copolymers comprise monomeric units I and II, wherein the monomer unit I has the formula A-X-CH 2 -B, wherein A is Rf-(CH 2 ) n , and Rf is a perfluoroalkyl group of the formula CF 3 -(CF 2 ) x- , wherein x is 3-12, n is 1-6, X is O or S, and B is vinylphenyl, and monomer unit II is vinylpyridine. |