Synthesis, preparation of micro/nanofibers by electrospinning and surface morphology of PS

This study focuses on well known successful preparation of linear polystyrene by Reversible addition-fragmentation transfer (RAFT) polymerization that is coupled with CTA, fabricated via electro spinning technique to form ultrafine fibers. At polymer parameter such as polystyrene (PS) molecular weight, solution parameter such as concentration, concludes the change of polystyrene in micro/nanofibers, beads and fibers while keeping other parameters constant such as viscosity, surface tension, conductivity and parameters of instruments. Finally interesting phenomenon is observed in the form of small particles, beads, ribbon like fibers, and uniform fibers having size 800 nm to 900 nm. As molecular weight increases from 6000g/mole to 10,000g/mole to 100,000g/mole, we achieved smooth or uniform nanofibers. Similarly concentration also affects to tend beads into fibers. Beads free fibers are obtained at higher concentration having average size 400nm.