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The Influence of Solvent Properties and Functionality on the Electrospinnability of Polystyrene Nanofibers
Author(s) -
Pattamaprom Cattaleeya,
Hongrojjanawiwat Walaiporn,
Koombhongse Piyawit,
Supaphol Pitt,
Jarusuwannapoo Teeradech,
Rangkupan Ratthapol
Publication year - 2006
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200600135
Subject(s) - nanofiber , materials science , polystyrene , electrospinning , solvent , chemical engineering , chloroform , scanning electron microscope , polymer chemistry , composite material , nanotechnology , polymer , organic chemistry , chemistry , engineering
Summary: In order to produce nanometer‐sized fibers at an industrial scale, not only the morphology but also the production rate of fibers is important. The effect of solvent properties and functionality on the production rate of electrospun PS nanofibers was investigated using eighteen different solvents. The solution concentration was varied between 10 and 30% w/v. Electrospinning of PS solutions was carried out at various applied voltages and tip‐to‐collector distances The production rate of the obtained PS nanofibers was quantified in terms of electrospinnability. We found that the chance for the resulting PS solution to be spinnable is greater for solvents with high dipole moment and low viscosity. The solvent that provided the highest electrospinnability for polystyrene was DMF and the functionalities that promoted high dipole moment and thus high spinnability were the carbonyl group and the nitrogen group with free electrons. General guidelines for choosing suitable solvents for successful production of electrospun nanofibers have also been proposed.SEM image of PS 685D at 200× magnification and the %‐coverage of the fibers obtained by using DMF, chloroform, and 1,4‐dioxane.