论文部分内容阅读
在超声波辐照下高分子将发生降解,生成大分子游离基;该大分子游离基可以引发另一单体使其聚合,或与其共聚生成嵌段或接枝体。A.Henglein曾研究了在超声辐照下聚丙烯酰胺(PAM)与丙烯腈(AN)嵌段共聚反应。本文研究了部分水解聚丙烯酰胺(HPAM)的超声降解规律,HPAM和AN的嵌段共聚反应以及共聚物的结构和性质,希望获得一种具有亲水基和高憎水基含量的新型水溶性HPAM-AN共聚物,为提高油气田的采收率提供一种新材料。
Under ultrasonic irradiation, the polymer will degrade to generate a macromolecule radical. The macromolecular radical may initiate another monomer to polymerize or copolymerize with the block or graft body. A. Henglein has studied the polyacrylonitrile (PAM) and acrylonitrile (AN) block copolymerization under ultrasound irradiation. In this paper, the ultrasonic degradation of partially hydrolyzed polyacrylamide (HPAM), the block copolymerization of HPAM and AN and the structure and properties of the copolymer were studied in the hope of obtaining a new type of water-soluble HPAM-AN copolymer provides a new material for enhancing oil recovery in oil and gas fields.