丙烯酰胺类聚合物合成用引发体系研究进展

丙烯酰胺类聚合物合成用新型引发剂是近年提高聚合物分子量研究的热门课题之一，讨论了水溶性偶氮引发剂的聚合性能、特点及应用范围，认为水溶性偶氮引发剂可用于制备高分子量的丙烯酰胺类聚合物及其衍生物，应用前景好；讨论了双官能度引发剂和含胺基功能性单体引发剂对聚合物分子量的影响，认为由过硫酸钾、氨水、尿素、偶氮-（2-脒基丙烷）盐酸盐及功能性单体 MP 构成的低温新型复合引发体系可制备超高分子量的丙烯酰胺类聚合物。

PROGRESS OF INITIATING SYSTEM FOR SYNTHESIS OF ACRYLAMIDE-BASED PO-LYMERS

The new initiating system for synthesis of acrylamide-based polymers has attracted much attention and been the focus of increasing polymer molecular weight in recent years. The performance of polymerization, charac-teristic and range of application of aqueous azo initiator has been investigated and the aqueous azo initiators can be used for the preparation of high molecular weight acrylamide-based polymers and its derivatives, which demonstratesabroad application prospect. The effect of difunctional initiator and amino functional monomer on molecular weight are also discussed. The initiating system of the new kind of cryogenic compound initiators containing potassiumpersulfate, ammonia water, urea, azo-(2-amidinopropane) dihydrochloride, functional monomer MP are believed to be able to be used for the preparation of ultrahigh molecular weight acrylamide-based polymers.