Crosslinked polystyrenes containing subst tuted sulfonyl groups (RSO2 X:X = Cl

O(CH2)9 CH3

NH2

NHNH2

Na

CH2CH3 and OH; R =polystyryl) were prepared. The 1R spectra of these compounds were assigned and compared with that of polystyrene and small molecular analogues. The characteristic absorption bands of the> SO2 group bound to the polymers and the effect of the polymer backbone on the IR spectra were discussed.