| abstract |
Novel ion-exchange or complexing media (for both ionic and nonionic species) (Figures 1-3) are disclosed, the media comprising polymeric anisotropic microporous supports containing polymeric ion-exchange or complexing materials. The supports are anisotropic, having small exterior pores and larger interior pores, and are preferably in the form of beads (Figure 1), fibers (Figures 2 and 3), or sheets. |