Solution electrospinning of styrene-acrylonitrile random copolymer from dimethyl sulfoxide
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Date
2013
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Publisher
Springer India sanjiv.goswami@springer.co.in
Abstract
Electrospinning is an efficient and versatile technique for the fabrication of ultrafine fibers having diameters ranging from nano to sub-micron level for various potential applications. In this study, we have investigated the influence of process and solution parameters, such as solution concentration, flow rate and applied voltage, on the morphology of electrospun poly(styrene-co-acrylonitrile) (SAN) fibers. Morphology and average diameter (D<inf>avg.</inf>) of the electrospun SAN fibers were characterized by scanning electron microscopy (SEM). The SEM results reveal that concentration, applied voltage and flow rate of solution are strongly associated with formation of defects, such as beads, in the fibers. Ultrafine SAN fibers with D<inf>avg.</inf> in the range of 96-872 nm were obtained by controlling the experimental parameters. The D<inf>avg.</inf> of electrospun fibers increased with increasing solution concentration, applied voltage and flow rate. Also, the D<inf>avg.</inf> exhibits a power law relationship with the solution concentration. © 2013 Central Institute of Plastics Engineering & Technology.
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Keywords
Copolymers, Dimethyl sulfoxide, Fibers, Flow rate, Morphology, Nanotechnology, Processing, Scanning electron microscopy, Styrene, Electrospun fibers, Experimental parameters, Increasing solutions, Poly(styrene-co-acrylonitrile), Power law relationship, Solution concentration, Solution parameters, Styrene acrylonitriles, Electrospinning
Citation
International Journal of Plastics Technology, 2013, 17, 2, pp. 123-138