The invention provides new water soluble polymers for the use in industrial processes, where large quantities of water is handled, such as sludge dewatering and papermaking. These new polymers are water soluble cross-linked block copolymers, wherein the block copolymers are cross-linked together using a cross-linking agent. Each of the block copolymers contain two different blocks, and these blocks are formed from different monomers. The blocks are linked together with a molecular spacer derived from a bifunctional initiator used during the polymerization of the blocks. The monomers used in polymerizing the blocks are different with each other and they are selected from a group consisting of N-vinylformamide, acrylic acid, acrylamide and water-soluble derivatives thereof.
本发明提供了新的
水溶性聚合物,可用于处理大量
水的工业流程,如污泥脱
水和造纸。这些新型聚合物是
水溶性交联嵌段共聚物,其中嵌段共聚物使用
交联剂交联在一起。每种嵌段共聚物都含有两个不同的嵌段,这些嵌段由不同的单体形成。在嵌段聚合过程中,嵌段通过双功能
引发剂产生的分子间隔连接在一起。用于聚合嵌段的单体彼此不同,它们选自 N-
乙烯基甲酰胺、
丙烯酸、
丙烯酰胺及其
水溶性衍
生物组成的组。