Electrospinning of biodegradable polyester urethane: effect of polymer-solution conductivity

This work deals with an investigation of fabrications of nanofibres based on biodegradable polylactic-acid/polyethylene-glycolchain-linked copolymers, using the electrospinning technique. Crucial attention is paid to describing the effect of polymer-solution conductivity on the morphology of the resulting nanofibres. Nanofibre systems were studied with scanning electron microscopy and the subsequent image analysis of nanofibre diameters. Hydrolytical degradability of the investigated copolymers was studied using gel permeation chromatography. The results show a significant effect of polymer-solution conductivity on the quality of nanofibres.