The acrylate-acrylamide copolymers [PAA] were synthesized.The effect of pour point depressants on the rheological properties and the pour point depress mechanism were investigated.

• 合成了丙烯酸二十二酯-丙烯酰胺共聚物(PAA)降凝剂，考察了降凝剂对原油流变性能的影响，并探讨了降凝剂的降凝机理。