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V. N. Morozov, T. Y. Morozova and N. R. Kallenbach, “Atomic Force Microscopy of Structures Produced by Electrospraying Polymer Solutions,” International Journal of Mass Spectrometry, Vol. 178, No. 3, 1998, pp. 143159. doi:10.1016/S1387-3806(98)14083-6

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• TITLE: Synthesis and Characterization of Poly(styrene-co-acrylamide) Polymers Prior to Electrospinning

  AUTHORS: Adebola A. Oketola, Nelson Torto

  KEYWORDS: Nanofibers; Emulsion Polymerization; Electrospinning; Poly(styrene-co-acrylamide)

  JOURNAL NAME: Advances in Nanoparticles, Vol.2 No.2, May 21, 2013

  ABSTRACT: Electrospun nanofibers present a new and rapidly growing research area due to their pronounced micro and nano characteristics associated with high surface area to volume ratio. Poly(styrene-co-acrylamide) and polystyrene polymers were synthesized by boiling temperature soap free emulsion polymerization in aqueous medium with potassium peroxosulphate as the initiator. The resulting polymers were dissolved in dimethylformamide and teterahydrofuran (DMF: THF) (4:1) to form polymer solutions that were electrospun into fiber mats with diameters ranging from 1.84 - 2.53 μm and 5.01 μm, respectively. The fibers were characterized by Fourier transform infrared spectroscopy (FTIR) equipped with universal ATR sampling accessory (4000 - 400 cm-1). The morphology and size were examined by a scanning electron miscroscope (SEM) and the thermal properties by thermogravimetric analysis (TGA). The FTIR spectra of the poly(styrene-co-acrylamide) revealed the presence of acrylamide on the polystyrene chain. Thus, surface modification of polystyrene with acrylamide is possible in a single step polymerization reaction prior to electrospinning.