Abstract:We investigate the effect of alcohol fraction (isopropanol, IPA) in a binary water-alcohol solvent mixture on the shear and extensional rheological properties, as well as the role of viscoelasticity on fiber formation of poly(acrylic acid) (PAA) in electrospinning. Comparison of the scaling of both specific viscosities η sp and extensional relaxation times λ E of PAA in water-IPA mixtures, showed stronger scaling compared to salt-free aqueous polyelectrolyte solutions, except for the η sp in the unentangled re… Show more
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