The multiphase structures and chain dynammics of fluorine-containing ionomers were investigated by means of C-13 spin-spin relaxation time (T2) and spin-lattice relaxation time (T1). The biexponential spin-spin relaxation of main chain carbon atoms of ionomers was observed. The fast relaxation component described the interface between ionic micro-domains and polymer matrix

ahd the slow relaxation component related to the polymer maltrix. The polymer chains in the interface arranged more regularly than that in continuous phase.The dynamic activities of polymer chain of ionomers formed by different metal ions had something to do with the characterization of metal ions and the fine structures of ionic microdomains

and it decreased with the increasing of the content of carboxylic groups and ionization degree.