Novel ion cross-linked polysulfone microsphere and preparation method thereof

The invention discloses a novel ion cross-linked polysulfone microsphere and a preparation method thereof, and belongs to the field of polymer fluorescent microspheres. According to the invention, a novel polysulfone copolymer with hydrophilicity is obtained through polycondensation reaction of a polysulfone oligomer and a hydrophilic polyarylethernitrile oligomer; on the one hand, the original advantages of good biocompatibility and the like of the polysulfone are retained; on the other hand, the polysulfone copolymer is endowed with hydrophilicity and the possibility of crosslinking with ions, and is characterized in that microspheres with different ion crosslinking prepared by a microemulsion method have strong green light and red light emission characteristics respectively under the excitation of ultraviolet light; meanwhile, the synthesis method of the novel polysulfone is simple and efficient, and industrialization is easy to realize. 一种新型的离子交联聚砜微球及其制备方法，属于高分子荧光微球领域。本发明通过将聚砜低聚物和亲水型聚芳醚腈低聚物缩聚反应得到具有亲水性的新型聚