SYNTHESIS AND BINARY COPOLYMERIZATIONS OF 2-PYRIMIDYL ACRYLAMIDE WITHDIFFERENT ALKYL ACRYLATES, VINYL-ACETATE AND ACRYLONITRILE

2-Pyrimidyl acrylamide (2PA) monomer was prepared by the reaction of 2 -aminopyrimidine with acryloyl chloride. Its structure was confirmed b y IR, H-1 NMR, and MS spectroscopy. Binary copolymerizations of this n ew monomer with methyl acrylate (MA), ethyl acrylate (EA), butyl acryl ate (BuA), methyl methacrylate (MMA), vinyl acetate (VA), and acryloni trile (AN) were performed in tetrahydrofuran, using 1 mol% azobisisobu tyronitrile as initiator at 65-degrees-C. N analysis and H-1 NMR spect roscopy were used to determine the composition of the copolymers. Copo lymerization parameters for each system were calculated by both the Fi neman & Ross and Kelen & Tudos methods. The monomer reactivity ratios for the systems 2PA-MA, 2PA-EA, 2PA-BuA, 2PA-MMA, 2PA-VA, and 2PA-AN w ere found by the Kelen & Tudos method to be r1 = 0.58 +/- 0.042, r2 = 1.26 +/- 0.086; r1 = 0.63 +/- 0.041, r2 = 1.04 +/- 0.072; r1 = 0.88 +/ - 0.051, r2 = 0.99 +/- 0.069; r1 = 0.43 +/- 0.021, r2 = 1.60 +/- 0.094 , r1 = 0.69 +/- 0.051, r2 = 0.084 +/- 0.088; and r1 = 0.065 +/- 0.008, r2 = 2.54 +/- 0.220, respectively. The average Q and e values for 2PA were found to be 0.51 and 0.66, respectively.