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采用氧化还原引发体系与AIBA为复合分段引发剂,在绝热水溶液体系中进行丙烯酸钠/丙烯酰胺/丙烯酰氧基乙基三甲基氯化铵自由基共聚合。研究了聚合温度、氧化还原引发体系用量、AIBA用量、单体浓度、共聚单体中DAC、AM含量,复合分散剂用量及其HLB值等对聚合反应单体转化率和聚合物特性黏度的影响。聚合物特性黏度随引发剂用量和单体浓度的增大而增大的实验结果证实了该两性聚丙烯酰胺水溶液均相制备过程中凝胶效应的存在。
The redox initiator system and AIBA were used as composite segmented initiators. Sodium acrylate / acrylamide / acryloyloxyethyltrimethylammonium chloride radical copolymerization was carried out in an adiabatic aqueous solution. The effects of polymerization temperature, the amount of redox initiator system, AIBA dosage, monomer concentration, DAC, AM content, the amount of complex dispersant and HLB value on the conversion of polymerization monomer and the intrinsic viscosity of polymer . The experimental results of the increase of the intrinsic viscosity of the polymer with the increase of initiator concentration and monomer concentration confirm the existence of gel effect during the homogeneous preparation of the amphoteric polyacrylamide aqueous solution.