Miscibility of poly(vinyl acetate) with poly(chloromethyl methacrylate), poly(2-chloroethyl methacrylate) and poly(2-bromoethyl methacrylate)

Abstract

The miscibility of poly(vinyl acetate) (PVAc) with poly(chloromethyl methacrylate) (PCMMA), poly(2-chloroethyl methacrylate) (PCEMA) and poly(2-bromoethyl methacrylate) (PBEMA) was studied by differential scanning calorimetry. PVAc/PCMMA and PVAc/PCEMA blends cast from tetrahydrofuran (THF) and 2-butanone (MEK) are miscible and do not show lower critical solution temperature (LCST) behaviour. PVAc/PBEMA blends cast from THF are immiscible, but those cast from MEK are miscible at low temperatures and shown LCST behaviour upon heating to 80-100°C. © 1992.