The (PEO-b-PS)n can be continuously used as macro-RAFT agent to monitor the polymerization of t-butyl acrylate to give the (ABCB)n type ternary multiblock copolymer (PEO-b-PS-b-PtBA-b-PS)n.

• 然后继续作为大分子链转移剂，调控丙烯酸叔丁酯进行RAFT聚合，我们得到(ABCB)n型三元两亲性多嵌段共聚物(PEO-b-PS-b-PtBA-b-PS)n。