在丙烯酰胺聚合反应中聚苯乙烯磺酸效应的研究

<正> 在聚合体系中添加具有一定结构的高分子化合物作模板,并利用此模板高分子与单体分子间存在的某种相互作用使单体分子按一定的排列进行聚合,这是所谓“模板聚合”的最初尝试,近年来,模板聚合已成为一类新的聚合方法,利用模板大分子对其周围单体分子反应过程和生成物结构、分子量的影响,有些研究者已由此成功地实现了对新生成物分子量和空间构型的控制,从而为实现高分子设计开创了新的途径。

THE EFFECT OF POLYSTYRENE SULFONIC ACID ON THE POLYMERIZATION OF ACRYLAMIDE

The effect of presence of polystyrene sulfonic acid on the polymerization of acryla-mide have been studied. It was found that the rates of initial polymerization of acryl-amide greatly increased with increasing of concentration of polystyrene sulfonic acid, and the maximum value was obtained when [PSSA] : [AM] =3:1. The energy of activation of the polymerization was determined. It was found that the energy of activation decreased from 12.3 kcal/mole to 9.8 kcal/mole due to the presence of matrix polystyrene sulfonic acid. When the insoluble polystyrene sulfonic acid was used as matrix instead of soluble one the effect was considerably decreased.