等离子体引发丙烯酰胺水溶液聚合

用两种等离子体引发丙烯酰胺水溶液聚合的方法 ,制备了线性超高分子量聚丙烯酰胺 .研究了放电时间、放电功率、单体的初始浓度及溶液的pH值等对聚合产物的影响

PLASMA-INITIATED AQUEOUS SOLUTION POLYMERIZATION OF ACRYLAMIDE

Acrylamide was initiated by plasma and post\|polymerized in aqueous solutions.High molecular weight linera polymers up to 6×10 6 were obtained.According to Chinese Standard GB 120005.1\|89 and GB/T 12005.10\|92,the intrinsic viscosity of a series of polymers was measured and approximate molecular weights were calculated.Two plasma\|initiated methods were used,and the results were almost the same.\ was very important for the formation of the polymer and affected the molecular weight of the polymer.The effect of plasma parameters (including discharge power and discharge time) on the molecular weight of the polymer was studied.The effect of polymerization condition (including polymerization temperature,polymerization time and initiated monomer concentration) on the molecular weight of the polymer and on the yield was obtained.The enlarged experiment made it possible to industrialize the plasma\|initiated aqueous solution polymerization of acylamide.