chloride counterions tend to be less soluble than such compounds with sulfate or iodide counterions the relative number of quaternary ammonium groups will affect the degree of pigment dispersion that can be achieved by a polymer which has been produced by reaction with this compound quaternary ammonium groups preferably may be in the range of 0 5 to 10 more preferably 1 to 5 most preferably about 2 by weight of polymer the polymeric binder with pendant quaternary ammonium groups may also contain segments having the following formula str10 alternatively the polymeric binder may have no quaternary ammonium pendant group but rather contain amine functional pendant groups in addition to the polymer with the quaternary ammonium group and or the amine group described above the magnetic recording layer in the magnetic media of this invention may include an optional secondary polymer component this secondary polymer component may be any polymer or combination of polymers known in the art to be suitable as a binder material for magnetic recording media examples of suitable polymers include polyurethanes polyvinyl butyrals polyesters etc the magnetic layer of the magnetic recording media of the present invention may also comprise one or more conventional additives such as lubricants.