A kind of unsaturated polyether was adopted as the reactive monomer,synthesis a new type of polycarboxylate superplasticizer with high dispersibility and long retention characters.

• 采用了工业化的不饱和聚醚多元醇为反应单体,合成了一种高减水率,长缓凝时间的新型聚羧酸系高效减水剂。