论文部分内容阅读
N-烷基与N-芳基马来酰亚胺,是属于1,2-二取代乙烯结构的单体,文献[1—3]报道这类单体能进行自由基聚合与共聚合。但对于N-(对甲苯基)马来酰亚胺(PMPMI)的自由基聚合与共聚合中,溶剂对聚合物分子量的影响尚未有详细报道。至于N-烷基与N-芳基马来酰亚胺分别和丙烯酸甲酯(MA)、甲基丙烯酸甲酯(MMA)的共聚合也有一些报道,由竞聚率的测定,计算出N-芳基马来酰亚胶的e值是2.12—2.29和1.35—1.75。表明N-芳基马来酰亚胺是一缺电子的单体,即负性单体。我们研究室曾报道N,N-二甲基-对甲苯胺(DMT)和其它芳胺能光诱导引发负性单体丙烯腈聚合。PMP-
N-alkyl and N-aryl maleimide, which belongs to the 1,2-disubstituted ethylene structure of the monomer [1-3] reported that these monomers can be free radical polymerization and copolymerization. However, the influence of the solvent on the molecular weight of the polymer in the free radical polymerization and copolymerization of N- (p-tolyl) maleimide (PMPMI) has not been reported yet. There are some reports on the copolymerization of N-alkyl and N-arylmaleimide with methyl acrylate (MA) and methyl methacrylate (MMA), respectively. From the determination of the reactivity ratio, N- The e values of the aryl maleimide are 2.12-2.29 and 1.35-1.75. It shows that N-aryl maleimide is an electron-deficient monomer, ie, a negative monomer. It has been reported in our laboratory that N, N-dimethyl-p-toluidine (DMT) and other aromatic amine light induce the initiation of the polymerization of the negative monomeric acrylonitrile. PMP-