The flocculant SPAN is the graft copolymer of different grafing percent of starch-polyacrylamide.

絮凝剂（SPAN）是不同接枝率的演粉与聚丙烯酰胺的接枝共聚物。

This paper presents a reviewal profile of methods on separation and characterization about starch-vinyl graft copolymers.

介绍了常见淀粉–烯类单体接枝共聚产物各成分的分离及其表征方法。