GPC of polyanilines

Hi,

We are interested in buying columns for separation of polyanilines. We have been using Waters Styrogel columns with NMP (N-Methyl-2-pyrrolidone) as solvent and polystyrene standards, however, we have been advised that we should instead be using a different type of  column: (with polyester copolymer bead) for polar polymers in medium polar organic solvents with PMMA standards, for adequate separation and accurate Mw determination of polyanilines.  Do you have any such columns, or alternative suggestions?

 

Thank you,

 

Kind regards,

Michel Nieuwoudt