COPOLYMERIZATION OF METHYL-METHACRYLATE (MMA) AND N-P-BROMOPHENYLMETHACRYLAMIDE (N-P-BrPhMA)
N-对溴苯基甲基丙烯酰胺的合成及其与甲基丙烯酸甲酯共聚合的研究

N-p-BrPhMA was synthesized by the interaction of p-bromoaniline with methacryloyl chloride in the presence of triethylamine. This new monomer was characterized by IR and 1H-NMR spectroscopy.The N-p-BrPhMA-co-MMA bulk copolymers were prepared and characterized by IR and 1H-NMR method.The compositions of the copolymers were determined from the areas of the phenyl group and methoxy group proton peaks in the proton NMR spectra.Reactivity ratios were calculated from the composition data by the Fineman-Ross method; the following values were obtained:r1= 3.25 + 0.02(MMA),r2 = 0.40 + 0.02(N-p-BrPhMA) for MMA-co-N-p-BrPhMA, r2= 1.05 + 0.02(MMA),r2 = 0.54 + 0.02(N-PhMA) for MMA-co-N-PhMA.The MMA-co-N-p-BrPhMA bulk copolymers are harder than PMMA homopolymer. When the amount of the N-p-BrPhMA changes from 2.63% to 28.7% the hardness of the bulk copolymers increases from 20.4 Kg/mm2 to 27.0 Kg/mm2.