The spinneret was connected to the cathode of a high power supply (HV) by a wire, while the anode was linked to the bottom of the reservoir filled with a Peregal
O water solution, prepared by dissolving Peregal
O into deionized water at a concentration of 5 wt[per thousand], collectively acting as the negative electrode to collect nano-filaments.
A typical procedure was as follows: distilled water (125 ml), surfactants [OP-10 (2 g), SLS (1 g), and peregal
(4 g)], and monomers (BA, AN, AA, and NOH) and emulsified in a 500-ml beaker by mechanical stirring at a speed of about 3000 rpm for 15 min.