| 摘要 |
The present invention relates to a process for preparation of a highly fluorinated polymer by converting a polymer containing the recurring unit R-S'-Xm, in which R denotes a base unit forming the matrix, X denotes identical or different functional groups, with the exception of halogen, and S' is an aromatic or araliphatic radical with m+1 free valencies, m being at least 1, into a highly fluorinated polymer by fluorination with elementary fluorine. The process is particularly useful for the preparation of cation exchangers, such as those which contain the unit <IMAGE> in which C6F10 represents a perfluorinated cyclohexyl ring. |
