| abstract |
An object of the present invention is to provide a highly dispersed solution, a production method thereof, and a filtration filter made of polymer nanofibers without gelling and precipitating the polymer nanofibers. A nanoparticulate fiber solution in which nanoparticulate fibers 30 are dispersed in a poor solvent 42, wherein the nanoparticulate fiber 30 is stretched by connecting a plurality of nanoparticles 11, and the stretched part The nanoparticles are composed of a polymer and a molecule of the poor solvent 42, and a plurality of the polymers are entangled and aggregated, and the poor solvent is interposed between the polymers. The above problem can be solved by using the nanoparticulate fiber solution 40 in which 42 molecules are sandwiched. As the polymer, those having any one of a hydroxyl group, an amino group and a fluoro group are preferable. [Selection] Figure 1 |