The addition of poly(vinyl pyrrolidone)(PVP) could release the corsslinked polyvinyl alcohol chains via preferably complexing with the metal ions,and thus improving the electrospinnability of PVA.

• 添加具有羰基和亚氨基双官能团聚乙烯吡咯烷酮(PVP)后,由于PVP优先络合高价金属离子,这样,使PVA大分子链从交联结构中游离出来,提高了PVA的可纺性。