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    Green Electrospinning of Polymer Latexes: A Systematic Study of the Effect of Latex Properties on Fiber Morphology

    Year: 2021

    Journal: Nanomaterials, Volume 11, MAR

    Authors: Gonzalez, Edurne; Barquero, Aitor; Munoz-Sanchez, Belen; Paulis, Maria; Ramon Leiza, Jose

    Organizations: MINECO of the Spanish Government [CTQ-2017-87841-R]; Basque Government Grupos Consolidados del Sistema Universitario Vasco [IT999-16]

    Keywords: electrospinning; latex; green electrospinning; nanofibers; fiber morphology

    Green electrospinning is a relatively new promising technology in which a polymer (latex) can be spun from an aqueous dispersion with the help of a template polymer. This method is a green, clean and safe technology that is able to spin hydrophobic polymers using water as an electrospinning medium. In this article, a systematic study that investigates the influence of the template polymer molar mass, the total solids content of the initial dispersion and the particle/template ratio is presented. Furthermore, the influence of the surfactant used to stabilize the polymer particles, the surface functionality of the polymer particles and the use of a bimodal particle size distribution on the final fiber morphology is studied for the first time. In green electrospinning, the viscosity of the initial complex blend depends on the amount and molar mass of the template polymer but also on the total solids content of the dispersion to be spun. Thus, both parameters must be carefully taken into account in order to fine-tune the final fiber morphology. Additionally, the particle packing and the surface chemistry of the polymer particles also play an important role in the obtained nanofibers quality.
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