Synthesis and Application of Supermolecular Cationic Polymer

摘要

The supermolecular cationic polymer with cationic group and auto-crosslinking group was prepared by water solution radical copolymerization of acrylic amide, acryloyloxyethyltrimethyl ammonium chloride/ diallyl propyl dimethyl ammonium chlorideand N-methol acrylamide was initiated by complex initiation synterm that contained oxidant, reducing agent, AIBA · 2HClchain extentision agent/accessorial reducing agent (DA) 、accelerant and Na4EDTA etc .. The homogeneous and thickened polyelectrolyte composite solution was prepared when the supermolecular cationic polymer was poured into anionic polyelectrolyte and which is used to build up the high penetrating stratum containing hold-up polymer with high concentration and make subsequently injected water enter the mid and low penetrating stratum. The sweep volume is enlarged by subsequent water and the recovery ratio is improved by water flooding after polymer flooding.