Miscible blends of poly(N,N-dimethylacrylamide) with five halogen-containing polymethacrylates

Abstract

The miscibility of poly(N,N-dimethylacrylamide) (PDMA) with five halogen-containing polymethacrylates was studied by differential scanning calorimetry and Fourier-transform i.r. spectroscopy (FTIR). PDMA is miscible with poly(chloromethyl methacrylate), poly(2-chloroethyl methacrylate), poly(3-chloropropyl methacrylate), poly(2-bromoethyl methacrylate) and poly(2-iodoethyl methacrylate) as shown by the existence of a single glass transition temperature in each blend. FTIR studies show that there are no changes in the position and shape of carbonyl bands of various polymethacrylates in the blends, but there are perceptible changes in the PDMA carbonyl bands. The results suggest that a hydrogen-bonding type interaction (>CO ... HCX) could exist in the blends. © 1994.