摘要
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。
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.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1990年第5期632-636,共5页
Acta Polymerica Sinica
关键词
丙烯酸甲酯
丙烯酰胺
共聚合
Methyl Methacrylate, Copolymer, Reactivity ratios, N-p-Halophe-aylmethacrylamide
