This method has the advantage of heat of reaction is derived, and the material system of low viscosity, easy to operation, products directly without drying applications. Drawback is the use of organic solvent, flammable, effective capacity is lower than the solution polymerization. 2.4 reversed phase suspension polymerization
Reversed phase suspension polymerization is nearly years developed a new method. Reversed phase suspension polymerization to produce soil simple art, low into wood, easy ten industry achieve soil, relative molecular mass of products, tens of millions of dollars to dissolve performance is better than aqueous solution polymerization products, can directly get the powder or granular products, packaging and transportation is convenient. 2.5 new polymerization method
A way of free radicals in the PAM synthesis in recent years research has a new progress, more energy conservation and environmental protection of initiator system, polymerization such as light, heat polymerization, radiation polymerization, plasma polymerization and precipitation polymerization, micellar polymerization, etc.