利用新复合引发体系合成P(DMDAAC-AM)共聚物

采用新的复合引发体系及助剂，在水溶液中合成了分子量较高而且速溶的P(DMDAAC-AM)共聚物．着重研究各种引发剂和助剂的浓度、引发及烘干温度、反应时间等因素对聚合反应的影响，得出最佳合成工艺及配方．利用IR、透射电镜和扫描电镜对产品进行分析．

USING A NEW CO-INITIATOR SYSTEM TO SYNTHESIZE P(DMDAAC-AM)

P(DMDAAC-AM), a new organic polymer flocculant, was prepared in this study by radical polymerization in aqueous solution , using a new co-initiator system. The effects of the factors such as purity of monomers, initiators concentration, polymerization temperature, drying temperature, and polymerization time onproducts performance were studied. The results show that the purity of monomers has a great effect on the molecular weights of the polymers. The purer the monomers, the larger the molecular weights of the polymers. But the other factors have an optimum for the molecular weights of the polymers, respectively. The structure of the polymer and it saggregation in aqueous solution and the surface of dried product were examined by means of various instrumental analysis techniques, including IR, TEM and SEM.