On the basis of analyzing characteristic of Daqing crude oil and according to mechanism of PPD, the graft copolymer of EVA and octadecyl maleimide was synthesized.

• 本文结合大庆原油的物性特征，在降凝机理的指导下，以EVA的烷基马来酰亚胺接枝反应，合成了一类新型原油降凝剂。