Fig. 1From: Crosslinked sulfonated polyacrylamide (Cross-PAA-SO3H) tethered to nano-Fe3O4 as a superior catalyst for the synthesis of 1,3-thiazolesThe FT-IR spectra of (a) Fe3O4 NPs, (b) Cross-PAA-SO3H and (c) Cross-PAA-SO3H@ nano-Fe3O4Back to article page