用^(1)H-NMR方法研究丙烯酸酯类与N-芳基取代甲基丙烯酰胺的共聚合

Studied of Copolymerization of Acrylates with N-Arylmethacryl amides by ^(1)H-NMR Method

本文测定了一系列丙烯酸酯（包括：甲基丙烯酸甲酯，甲基丙烯酸异冰片酯，丙烯酸酯等）与Ｎ－芳基取代甲基丙烯酰胺，（包括：Ｎ－苯基甲基丙烯酰胺（Ｎ－φＭＡ），Ｎ－对甲苯基甲基丙烯酰胺（Ｎ－ｐ－ＴＭＡ），Ｎ－邻甲苯基甲基丙烯酰胺（Ｎ－ｏ－ＴＭＡ），Ｎ－对澳苯基甲基丙烯酰胺（Ｎ－ｐ－ＢｒＰｈＭＡ），Ｎ－对氯苯基甲基丙烯酰胺（Ｎ－ｐ－ＣｌＰｈＭＡ），Ｎ－对硝基苯基甲基丙烯酰胺（Ｎ－ｐ－ＮＰｈＭＡ），Ｎ－邻硝基苯基甲基丙烯酰胺（Ｎ－ｏ－ＮＮＰｈＭＡ），Ｎ－萘基甲基丙烯酰胺（Ｎ－α－ＨＭＡ））的共聚物￣１Ｈ－ＮＭＲ谱。用￣１Ｈ－ＮＭＲ方法测定了共聚物的组成，估算了共聚体系中各单体的竞聚率，比较了各种单体的反应活性。

The copolymerizations of acrylates including:methyl acrylate(MA),methyl methacrylate(MMA), isobornyl methacrylate(IBMA)with different N-arylmethacry- lamiues including:N-phenylmethacrylamide(N-phMA ),N-p-Tolylmethacrylamide(N- p-TMA),N-o-Tolymethcryhmide (N-o-TMA).N-p-Bmmophenylmethacfyhmde(N-p-BrPhMA),N-p-Chlorophenylmethacrylamide(N-p-ClPhMA),N-p-Nitro- phenyh ethacrybmide(N-p-NPhMA),N-o-Nitrophenylmthacrylamide(N-o- NPhMA),N-α-Naphthylmethacrylanude(N-α-HMA)were studied by means of ￣1H-NMR method。The composition of the copolymers inchding:MA-co-N-ArMA, MMA-co-N- ArMA, IBMA-co-N-ArMA were determined from the peak areas of the phenyl group and methoxy group in the ￣1H-NMR spectra。 Reactivity ratios were calculated from the composition data by the Fineman-Ross method。The activity of various N-ArMA with MA ,MMA and IBMA were investigated。