Fabrication of Polymer Nanofibers and Carbon Nanofibers by Using a Salt‐Assisted Microemulsion Polymerization

Salt‐assisted sphere‐to‐cylinder micelle conversion in the microemulsion polymerization process is the crucial step for the formation of polyacrylonitrile nanofibers (see picture). Iron( III ) chloride is used as a structure‐directing agent and is coordinated by polyacrylonitrile nanoparticles, which is essential for the formation of the nanofibers.