Studies on blends of polychloroprene (CR) and poly(ethylene-methyl acrylate) copolymer (PEMA) have been carried out with respect to their miscibility. Irrespective of the methods of measurement used, such as differential scanning calorimetry (d.s.c.) or dynamic mechanical analysis (d.m.a.), these blends show a single glass transition temperature and also obey the Fox law. The crystallinity, measured by wide-angle X-ray diffraction (WADX), as well as the crystalline melting temperature (from d.s.c. and d.m.a.), decreases with the increasing CR content of the blends. The lowering of the crystalline melting temperature of PEMA leads to a negative interaction parameter between PEMA and CR. The miscibility of the PEMA/CR blends has also been investigated by using Fourier transform infra-red (FTi.r.) spectroscopy. A lowering of the CH3 asymmetric stretching frequency of PEMA with an increasing amount of CR in the PEMA/CR blends indicates a dipolar interaction between the polar methyl acrylate and chloride groups. Examination of the cryogenically fractured surfaces using scanning electron microscopy (SEM) shows that the blends of PEMA and CR are well dispersed. These studies confirm the miscibility of PEMA and CR for all of the blend compositions.