【摘要】 <正> 我们已经报道过甲基丙烯酸甲酯与N-对卤苯基甲基丙烯酰胺共聚合的研究。本文工作合成了丙烯酸甲酯与N-对卤苯基甲基丙烯酰胺共聚体,研究了这二组共聚体系的聚合反应、共聚体的组成、估算了单体的竞聚率,比较了这两种酰胺对丙烯酸甲酯与甲基丙烯酸甲酯的反应活性。更多还原

【Abstract】 The MA-co-N-p-BrPhMA(Methyl-acrylate-co-N-p-Bromophenylmethacrylamide) and MA-co-N-p-ClPhMA (Methyl-acrylate-co-N-p-Chloro-phenylmethacrylamide) bulk copolymers were prepared and characterized by I. R. 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= 1.33±0.02(MA), r2= 0.42±0.02(N-p-BrPhMA) forMA-co-N-p-BrPhMA copplymer;r1= 1.23±0.02 (MA), r2 = 0.63 ±0.02(N-p-ClPhMA) forMA-co-N-p-ClPhMA copolymer.The activity of N-p-XPhMA with MA decreases in order of:N-p-BrPhMA > N-p-ClPhMA The MA-co-N-p-XPhMA bulk copolymers are transparent.更多还原