Process of making an antibacterial nanofiber

摘要

Disclosed is an antibacterial nanofiber which comprises a polymer having an electron-withdrawing group and/or an electron-withdrawing atomic group and has an average fiber diameter of not less than 1 nm and less than 1000 nm, wherein the ratio of the binding energy of the minimum unit of the polymer at 25° C. to the binding energy of the electron-withdrawing group and/or the electron-withdrawing atomic group contained in the minimum unit of the polymer at 25° C. is 0.13 or greater. The nanofiber has an antibacterial activity by itself, and therefore can exhibit an antibacterial activity without the need of adding any antibacterial agent.

主权项

1. A method of imparting an antibacterial activity to a nanofiber without the addition of an antibacterial agent, comprising:
spinning a polymer possessing electron-withdrawing groups and/or electron-withdrawing atomic groups, wherein the polymer is a polyester resin, a polyamide resin, a polyurethane resin, or a polyamideimide resin, and has a ratio of the bond energy at 25° C. of electron-withdrawing groups and/or electron-withdrawing atomic groups present in a smallest unit of the polymer to the bond energy at 25° C. of the smallest unit of the polymer of at least 0.13, and obtaining a nanofiber having an average fiber diameter of at least 1 nm but less than 1,000 nm, said nanofiber itself exhibiting an antibacterial activity.