Macroreticular resins based on cross-linked polystyrene, XAD-2 and XAD-4. have been" coated" with tri-n-dodecylmethylammonium iodide (TLMAI) and n- hexadecyltrimethylammoniuni bromidc (CTAB) along with a polystyrene (PS) sample. The anions on the quaternary ammonium salts have been labeled with the anion label I-oxyl-2.2, 5, 5-tetra-methylpyrrolidine-3-carboxylate (label 5 17). EPR spectra were taken as a ...
