AZEOTROPY IN TERPOLYMERIZATION OF 2-PYRIMIDYL ACRYLAMIDE WITH DIFFERENT ALKYL ACRYLATES AND ACRYLONITRILE

2-Pyrimidyl acrylamide monomer (2PA) has been prepared by the reaction of 2-amino pyrimidine with acrylolyl chloride in the presence of trie thylamine as catalyst. Its structure was confirmed by IR and H-1 NMR s pectroscopy. Ternary copolymerizations of 2-pyrimidyl acrylamide monom er (2PA) with methyl acrylate (MA), methyl methacrylate (MMA), ethyl a crylate (EA), butyl acrylate (BuA) and acrylonitrile (AN) were carried out in THF at 65-degrees-C in the presence of a free radical initiato r. Experimental terpolymerization data agree well with calculations ba sed on the Alfrey-Goldfinger equation. The determination of unitary, b inary and ternary azeotropies of the various systems studied were easi ly handled by a computer. The ternary azeotropic compositions for 2PA- MA-AN and 2PA-MMA-AN were 32.20:17.5:50.30 and 13.54: 52.64: 33.82 mol %, respectively. Pseudo-azeotropic regions were identified where the d eviation between feed and polymer composition is very small.